%% Image selected per Image Pickin' thread: http://tvtropes.org/pmwiki/posts.php?discussion=1316176055096205500
%% Please do not change or remove without starting a new thread.

[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/DreamTheaterMangini6_7616.jpg]]
[[caption-width-right:350: [[ChewBubblegum We're here to rock hard and chew bubble gum, and we're all out of gum.]][[note]]From left to right: James [=LaBrie=], John Myung, Mike Portnoy, Jordan Rudess, John Petrucci[[/note]]]]

[floatboxright:
Influenced by:
+ Music/{{Rush}}, Music/{{Yes}}, Music/LedZeppelin, Music/PinkFloyd, Music/DeepPurple, Music/{{Kansas}}, Music/{{Queen}}, Music/{{Genesis}}, Music/IronMaiden, Music/EmersonLakeAndPalmer, Music/{{U2}}, Music/{{Journey}}, Music/{{Pantera}}, Music/{{Muse}}, Music/{{Metallica}}, Music/{{Watchtower}}
]

Dream Theater is a [[ProgressiveMetal prog-metal]] band founded in 1985 by John Myung, John Petrucci, and Mike Portnoy under the name ''Majesty''. They changed the name, but their logo is still known as the Majesty symbol. While not entirely mainstream, they are pretty well known among rock and metal listeners. The inclusion of their songs in the ''VideoGame/GuitarHero'' and ''VideoGame/RockBand'' series have increased their fame, but they have still had only one song ("Pull Me Under") chart well enough to qualify as a "hit".

They are known for the extreme technical difficulty and complexity of their music, which often includes long instrumental interludes to showcase the skills of the band members. As such, much of it veers heavily into EpicRocking territory. They are also known for their live shows, which are often really long and suitably epic.

There's a kind of SpinOff of the band, called ''Music/LiquidTensionExperiment'', which started as a solo project of Mike Portnoy, but eventually ended with 3 out of 4 members of the band, as Music/JordanRudess was later incorporated into Dream Theater.
----

!! Discography:

'''Studio Albums:'''
* 1989 - ''When Dream and Day Unite'': "Status Seeker", "The Ytse Jam", and "Afterlife".
* 1992 - ''Music/ImagesAndWords'': "Pull Me Under", "Another Day", and "Metropolis Pt. 1: The Miracle and the Sleeper".
* 1994 - ''Awake'': "6:00", the "A Mind Beside Itself " trilogy, and "Lie".
* 1995 - ''A Change of Seasons EP'': "A Change of Seasons".
* 1997 - ''Falling into Infinity'': "Hollow Years", "Hells Kitchen", and "Trial of Tears".
* 1999 - ''Music/MetropolisPt2ScenesFromAMemory'': "Home", "The Dance of Eternity", and "The Spirit Carries On".
* 2002 - ''Six Degrees of Inner Turbulence'': "The Glass Prison", "Misunderstood", and "Six Degrees of Inner Turbulence".
* 2003 - ''Train of Thought'': "As I Am", "Stream of Consciousness", and "In the Name of God".
* 2005 - ''Octavarium'': "The Root of All Evil", "Panic Attack", and "Octavarium".
* 2007 - ''Systematic Chaos'': "In the Presence of Enemies", "Forsaken", and "Constant Motion".
* 2009 - ''Black Clouds & Silver Linings'': "A Rite of Passage", "A Nightmare to Remember", and "The Count of Tuscany".
* 2011 - ''A Dramatic Turn of Events'': "On the Backs of Angels", "Build Me Up, Break Me Down", and "Breaking All Illusions".
* 2013 - ''[[SelfTitledAlbum Dream Theater]]'': "The Enemy Inside", "The Looking Glass", and "Illumination Theory".
* 2016 - ''Music/TheAstonishing'': "The Gift of Music", "Moment of Betrayal", and "Our New World".

'''Official Live Albums to date:''' [[note]] Not counting releases of Ytsejam Records. [[/note]]
* 1992 - ''Live at the Marquee''
* 1997 - ''Once in a [=LIVEtime=]''
* 2000 - ''Live Scenes from New York''
* 2003 - ''Live at Budokan''
* 2006 - ''Score''
* 2008 - ''Chaos in Motion 2007Ė2008''
* 2013 - ''Live at Luna Park''
* 2014 - ''Breaking the Fourth Wall''

'''Other Albums:'''
* 2008 - ''[[GreatestHitsAlbum Greatest Hit (...And 21 Other Pretty Cool Songs)]]''
----

!! Current Members:
* John Petrucci - guitars, backing vocals (1985-)
* John Myung - bass (1985-)
* James [=LaBrie=] - lead vocals (1991-)
* Music/JordanRudess - keyboards (1999-)
* Mike Mangini - drums (2010-)

!!Former members:
* Mike Portnoy - drums, backing vocals (1985-2010)
* Charlie Dominici - lead vocals (1987-1989)
* Kevin Moore - keyboards (1986-1994)
* Derek Sherinian - keyboards (1995-1998)
* Chris Collins - lead vocals (1986-1986)
* Steve Stone - lead vocals (1990-1990)

----
!! This band and its music provides examples of:

* AddedAlliterativeAppeal: "The smell of stale sweat and [[PrecisionFStrike shit]] steaming throught the night" [[note]]from "The Test That Stumped Them All"[[/note]]
* AgeProgressionSong: "A Change of Seasons" tells the narrator's attitude towards life and others throughout their life, [[BookEnds bookended]] by "The Crimson Sunrise" and "The Crimson Sunset", two movements and lines within those movements.
* AlbumIntroTrack: "Regression" for ''[[Music/MetropolisPt2ScenesFromAMemory Scenes from a Memory]]'' and "False Awakening Suite" for ''Dream Theater''.
* AlbumTitleDrop: The only exceptions to this are ''Falling into Infinity'', ''Six Degrees of Inner Turbulence'', ''Train of Thought'', ''Black Clouds & Silver Linings'', and ''A Dramatic Turn of Events'', whose titles do not appear anywhere in the albums. Otherwise:
** ''When Dream and Day Unite'' is a part of "Only a Matter of Time".
** ''Images and Words'': from "Wait for Sleep".
** ''Awake'': from a line in "Innocence Faded".
--> ''The faithful live awake''
*** Also in a line in "The Silent Man":
--> ''Tonight I'm awake (the silent man)''
** The working title for the ''Falling into Infinity'' album, "Stream of Consciousness", does show up in "Lines in the Sand".
** ''Scenes from a Memory'': from "Scene Six: Home" ([[CallBack and "Metropolis Pt. 1"]], from ''Images and Words'').
** ''Octavarium'': from, well, "Octavarium".
** ''Systematic Chaos'': The second half of it anyway, from a line in "The Dark Eternal Night"; though the title may reference a line from "Constant Motion".
--> ''Insane random thoughts of neat disorder''
*** Given as ''Train of Thought'''s title was a reference to the song "Stream of Consciousness", it very likely is the same there.
** ''The Astonishing'': [[spoiler:from the last line on the album.]]
--> [[spoiler:''Our lives will be astonishing again.'']]
* AnimatedMusicVideo: "Forsaken", from ''Systematic Chaos''.
* AntiLoveSong: "Light the Fuse and Get Away" is about a cynical man who has been dumped so many times that he considers relationships a waste of time. "Honor Thy Father" is a "hate song" variant of this trope written about Mike Portnoy's step-father.
* ArcNumber[=/=]ArcWords: "Octavarium" uses the idea that [[WhereItAllBegan everything ends where it began]] and uses the number 8 and the octave as examples. What's more is that it's the eighth track on their eighth album and it's length in minutes ([[EpicRocking twenty-four]]) is divisible by 8. Various other elements in the song also allude to cycles and/or the number 8.
** According to ex-drummer Portnoy, the album's concept stemmed from his realising that (a), ''Octavarium'' was to be their eighth studio release, and (b), they had just released their fifth live release (''Live at Budokan'').
** Hell, the song even references the entire album in one part!
** The word "home" comes back a lot of times, but it's unclear whether or not that's intentional.
* AudienceParticipationSong: "Take the Time" was this in early tours. "On the Backs of Angels" is starting to fill this mold now, with James [=LaBrie=] encouraging audiences to sing along to the main keyboard melody of the song.
** AudienceParticipation: With the upcoming release of ''The Astonishing'', the band has gone out of their way to allow fans to chose between being members of The Great Northern Empire or the Ravenskill Rebel Militia.
* BadassBeard: Jordan Rudess' famous chin-beard. John Petrucci's has become this by the time of ''The Astonishing'', and Mike Portnoy's came in a variety of different colours.
* TheBandMinusTheFace: Mike Portnoy founded the band, alongside Petrucci and Myung, arranged much of the music and did the recording, production and most of the interviews - not to mention maintaining and curating a vast back-catalogue of bootlegs.
* BigRockEnding: "Endless Sacrifice", "In the Presence of Enemies Pt. 2", and "Erotomania".
* UsefulNotes/{{Boston}}: The original members (Petrucci, Myung, Portnoy) met while attending Berklee College of Music.
* BookEnds: The first song of the Alcoholics Anonymous Suite, "The Glass Prison", begins with the sound of static, followed by the sound of a church bell, then the actual music starts. The last song in the suite, "The Shattered Fortress", ends with the song fading out to the sound of a church bell, followed by static.
** "The Great Debate" begins with a keyboard riff. Soon, bass is added, followed by drums, then guitar. At the end of the song, these instruments are taken away in reverse order, until only the keyboard riff remains.
** ''Octavarium'' ends with the same piano note and sound effects that it began with on "The Root of All Evil".
** "A Change of Seasons" begins with a section called "The Crimson Sunrise" and ends with "The Crimson Sunset", and opens and closes with the same melody.
** "In the Presence of Enemies" was split up to bookend ''Systematic Chaos'' because Mike felt it was too long to start the album and didn't want to end another album with an epic-length piece. It's also something of a tribute to Music/PinkFloyd's "[[Music/WishYouWereHere Shine On You Crazy Diamond]]", particularly how the song fades out and in with wind sound effects.
* BreakupSong: "Space-Dye Vest" is one of the most haunting examples of this trope ever recorded.
* BreatherEpisode: On ''Metropolis Pt. 2: Scenes from a Memory'', the soft ballad "Through Her Eyes" is placed between the extemely heavy epics "Beyond This Life" and "Home".
* CallBack:
** There are plenty of musical call backs to other songs in the Twelve Step Suite during "The Shattered Fortress" from 2009's 'Black Clouds and Silver Linings'. For example, 1:44 into the song, the melody from the intro to "This Dying Soul". At the 3-minute mark, there is another reprise of a riff from the same song. (Actually, every song in the suite contains at least one musical and/or lyrical reference to at least one previous song from the suite, but "The Shattered Fortress" has the most of these by far. The suite is also a direct sequel to "The Mirror" and several of its songs contain references to that song as well.)
** On ''Awake'', there's a solo at around 5:18 in "The Mirror". The same melody would come back, albeit in a different key, as the first verses of "Space-Dye Vest".
*** Similarly, the chorus from "Caught in a Web" appears as a keyboard motif in "Erotomania".
*** A keyboard riff from "Erotomania" is reused in "The Crimson Sunrise" from "A Change of Seasons".
* CallingTheOldManOut: "Honor Thy Father".
* TheCameo: Jordan has appeared on a Music/DavidBowie album.
* CarefulWithThatAxe: Most present before James experienced his vocal injury, like the scream during the build up of "Learning to Live".
** That scream is the F♯ just below soprano C, and is one of the highest notes James has ever reached in his entire singing career.
** The entire ''Live at the Marquee'' album, especially the Charlie Dominici songs, which he sings a whole lot higher just because he can, apparently.
** [[http://jlbscream.ytmnd.com/ This]] YTMND. Listening to it right before or after ''Live at the Marquee'' is hilarious.
** Referenced in the lyrics to "Octavarium" as a ShoutOut to Music/PinkFloyd, in step 3, "Full Circle". Then PlayedStraight in the last stanza of step 4, "Intervals".
** Also present in the backing vocals to the TitleDrop section of "Build Me Up, Break Me Down." They get [[UpToEleven more prominent]] each time the section repeats.
* CastFullOfPrettyBoys: Back during the ''Images and Words/Awake'' era.
* CelebrityIsOverrated: "Build Me Up, Break Me Down" is about how the media intrudes the private lives of celebrities.
** "The Looking Glass" can also be interpreted as this, though it's more criticizing people's desire for fame than it is criticizing fame itself.
* ChronologicalAlbumTitle: ''Six Degrees of Inner Turbulence'' and ''Octavarium''.
* ConceptAlbum:
** ''Metropolis Pt.2'', which tells the story of a man reliving a past life through hypnosis. [[spoiler:Beware the DownerEnding.]]
** ''Six Degrees of Inner Turbulence'' and ''Octavarium'' too, although they rely more on thematic connections between songs rather than telling a story.
*** What's even more interesting about ''Octavarium'' is that each of the songs is played in each of the minor keys that start with white notes (from F minor to F minor, ascending) - whilst the transitions between the songs are in the accidental keys between these.
** ''The Astonishing'': The story takes place in [[TwentyMinutesIntoTheFuture 2285]] in the Maineland of the American Northwest, now called "The Great Northern Empire of the Americas", when devices known as NOMACS [[AIIsACrapshoot became corrupted and basically supply all of the country's entertainment, mainly music]] and the country became a Dystopia.
* ContinuityNod:
** Every song from the Twelve-Step suite,[[note]]"The Glass Prison", from ''Six Degrees of Inner Turbulence''; "This Dying Soul", from ''Train of Thought''; "The Root of All Evil", from ''Octavarium''; "Repentance", from ''Systematic Chaos'' and "The Shattered Fortress", from ''Black Clouds & Silver Linings''[[/note]] barring "The Glass Prison" for being the first, is referenced in the other songs of said suite. The suite itself is a direct sequel to "The Mirror" from ''Awake'', and several of its songs contain nods to that song as well.
** "Wait for Sleep"-"Learning to Live", from ''Images and Words''.
** Almost the entirety of ''Metropolis Part 2: Scenes from a Memory'' by being a ConceptAlbum, both between the songs and the song "Metropolis Part 1: The Miracle and the Sleeper", from ''Music/ImagesAndWords''.
** The tandems "Vacant"-"Stream of Consciousness", from ''Train of Thought''
** Each of the lines in the "Intervals" step of "Octavarium", from ''Octavarium'', refer back to the previous tracks on the album.
** "The Best of Times", from ''Black Clouds & Silver Linings'' has "Remember, seize the day". This song was written by Mike Portnoy about the death of a relative... and the previous song that was written by him about the death of a relative, "A Change of Seasons", from the ''A Change of Seasons'' EP, contained the words "Seize the day" quite a few times.
** "The Bigger Picture" from the SelfTitledAlbum makes a reference to "The Ministry of Lost Souls", with the line 'And Iíll reach the waterís edge'.
** A very famous example is how some of their albums start with a sound that ended the previous album. ''Six Degrees of Inner Turbulence'' begins with static, which ''Scenes from a Memory'' ended with. The next album, ''Train of Thought'', begins by fading in with the same chord that ''Six Degrees'' fades out with in its ending. To cap that off, the last note on ''Train of Thought'' is the same one that starts ''and'' ends ''Octavarium'' - making a "lasso" of those four albums.
* CoverAlbum:
** A special edition of ''Black Clouds & Silver Linings'' comes with a disc with six covers.
** There're also two "official bootlegs" composed of covers called "Uncovered".
** They've also recorded live versions of several classic prog and metal albums ''in their entirety''. Examples include Music/IronMaiden's ''Music/TheNumberOfTheBeast'', Music/PinkFloyd's ''Music/TheDarkSideOfTheMoon'', Music/{{Metallica}}'s ''Music/MasterOfPuppets'', and Music/DeepPurple's ''Made in Japan''. These have been released in the band's "Official Bootleg" series (there's also a DVD of the ''Dark Side'' cover).
* DarkerAndEdgier:
** ''Awake''. Due to various reasons such as a decision to take a more metallic approach and especially the growing rift between the band and then-keyboardist Kevin Moore, it's probably the band's second heaviest album after ''[=ToT=]'' and is definitely the most haunting and darkly atmospheric. This is especially notable considering the general optimism and focus on prog-rock and melodic elements on ''Images and Words'', its predecessor.
** ''Train of Thought'', probably even moreso. Not only are the lyrical themes much darker, but the music itself is much ''much'' heavier than that of ''Six Degrees'', the previous album.
** "The Glass Prison" (from ''Six Degrees'') was written after Mike and John went to a Music/{{Pantera}} concert.
** The self-titled album, while not dark thematically, is quite a bit heavier than "A Dramatic Turn of Events" [[note]]which, to be fair, was their lightest album in quite some time[[/note]], featuring an unusual abundance of 7-string guitars.
* DistinctDoubleAlbum: ''Six Degrees of Inner Turbulence,'' ''The Astonishing,'' and ''Greatest Hit''
* DownerEnding: ''Awake'' has one with "Space-Dye Vest" and [[spoiler:''Scenes from a Memory'' has a SuddenDownerEnding, though it might not be obvious at first listen, but it's confirmed by WordOfGod]]. Some of their other albums could also qualify, with "In the Name of God" from ''Train of Thought'' being a heart-wrenching response to the Branch Davidian siege in Waco.
* DramaticCurtainToss: They've opened many of their 2009 shows with "A Nightmare to Remember," often starting with a black curtain and pulling it down when the guitar enters. It's quite dramatic.
* DroneOfDread: At the beginning of "The Dance of Eternity."
* EarlyBirdCameo: Jordan played a single show with the band right before Sherinian was hired, and Mike Mangini played a drum duet with Portnoy during a show in 2002.
* EasterEgg: "In The Name of God" has a hidden Morse Code message that translates to "Eat my ass and balls".
* EchoingAcoustics: The electronically-triggered snare and kick Mike Portnoy was forced to use on ''Images and Words'' by producer David Prater.
* EpicInstrumentalOpener: The band does this a lot. If a song achieves EpicRocking lengths (see below), it is guaranteed to begin this way.
* EpicRocking: A feature of both this band and its spinoff ''Music/LiquidTensionExperiment'', being ProgressiveMetal bands, of course. The only albums to date not featuring a track longer than 10 minutes are the debut (''When Dream and Day Unite'') and the recently released ''The Astonishing'' [[note]]which is ironic since ''The Astonishing'' is their longest album to date [[/note]] , and the average song length is just under 10 minutes. On the extreme end, there're the following songs:
** While broken up into three tracks, the "A Mind Beside Itself" suite from ''Awake'' lasts for 20:26.
** "A Change of Seasons", from the ''A Change of Seasons'' EP. (23:06)
** "Six Degrees of Inner Turbulence", from ''Six Degrees of Inner Turbulence''. (''42:04'', was on its own disc, and was split over 8 tracks)
** "Octavarium", from ''Octavarium''. (24:00)
** "In the Presence of Enemies", from ''Systematic Chaos''. (25:38 if both parts are considered a single song, which is usually true during concerts)
** "The Count of Tuscany", from ''Black Clouds & Silver Linings''. (19:16)
** "Illumination Theory", from ''Dream Theater''. (22:18, technically closer to 19:17 as the track also includes a secret 2:30 track, but still impressive)
** The five songs of the "Twelve-Step Suite" add up to ''57:16''. Add another 6:47 if you count "The Mirror", which is also about Mike's struggle with addiction.
** Most tracks on ''The Astonishing'' are relatively short, especially by Dream Theater standards, but the album itself is a colossal two-hour-plus narrative that tells a single continuous story, and has been crafted as a single cogent piece. Strap in!
* EveryoneKnowsMorse: "In The Name of God" has Morse code hidden during one of the instrumental breaks. Decoded, it literally translates to "Eat my ass and balls."
* EverythingIsAnInstrument:
** Jordan Rudess has been known to experiment with some interesting instruments, including keyboards that sound like sitars and turntables, keyboard guitars, a Haken Continuum[[note]]a keyboard with no actual keys but a single flat strip that is played by touching with the fingers[[/note]] and even the iPhone and the iPad. He surely has a lot of toys.
** John Myung has also been known to play with a Chapman Stick instead of an ordinary bass from time to time.
* EvilSoundsRaspy: During the verses of "The Dark Eternal Night" from ''Systematic Chaos'', James and Mike portray an Egyptian God with this kind of voice by singing the melody with heavy distortion on their vocals.
** "My soul is yours, dark master. I will fight for you." [[note]]From "In the Presence of Enemies Part 2"[[/note]]
* ExactlyWhatItSaysOnTheTin: Their [[GreatestHitsAlbum Greatest Hit album]]. Only one of those songs ("Pull Me Under", from ''Images & Words'') became a hit. All of the others were released singles and re-recordings.
* FakeBand: During their live shows in the Derek Sherinian era, they occasionally exchange instruments with each other and perform some {{Cover Version}}s as "Nightmare Cinema". Referenced in the "Full Circle" part of the song "Octavarium" with "Day for Nightmare Cinema" in the lyrics.
* FakeOutFadeOut: "Misunderstood", which fades out...and then back in.
* FadingIntoTheNextSong: Happens fairly often. Examples include "Vacant" into "Stream of Consciousness", "Build Me Up, Break Me Down" into "Lost Not Forgotten", "Misunderstood" into "The Great Debate", and "Hell's Kitchen" into "Lines in the Sand".
** Heck, they have even done this between albums. For example, ''Six Degrees of Inner Turbulence'' begins with static, which ''Scenes from a Memory'' ended with. The next album, ''Train of Thought'', begins with by fading in with the same chord that ''Six Degrees'' fades out with. To cap that off, the last note on Train of Thought is the same one that starts ''and'' ends Octavarium - making a "lasso" of those four albums.
* FanCommunityNickname: European fans refer to themselves as "Dreamers". North American fans are the "North American Dream Squad" (shortened to NADS).
* FilkSong: "Pull Me Under" is one for ''Theatre/{{Hamlet}}'' while "In the Presence of Enemies" is one for ''Manhwa/{{Priest}}''.
* FiveManBand:
** TheLeader: Myung
** TheLancer: James
** TheSmartGuy: Jordan
** TheBigGuy: Petrucci
** [[SixthRanger Fifth Ranger]]: Mike
* ForDoomTheBellTolls: "The Glass Prison" makes use of this.
* GenerationXerox: The subject of the first movement of "Octavarium", "Someone Like Him".
* GenreRoulette: Frequently, as befitting a ProgressiveMetal band. A good example is the ragtime break in "The Dance of Eternity".
* GriefSong: "Take Away My Pain" and "The Best of Times". "Sacrificed Sons" could be considered one as well, as it is dedicated to the victims of 9/11.
* HauntedHouseHistorian: The Older Man from "Fatal Tragedy", and the eponymous Count of Tuscany.
* HeavyMithril: ''Systematic Chaos'' is full of this, including "In the Presence of Enemies", "Forsaken", "The Ministry of Lost Souls", and "The Dark Eternal Night". All of these were written by John Petrucci.
* HiddenTrack: The five segues on ''Octavarium'', which represent the five black notes on the keyboard, are indexed as hidden tracks on the CD. [[note]]Unfortunately, the segues before "I Walk Beside You" and "Never Enough" are inexplicably absent from the iTunes release of the album.[[/note]]
** Their twelfth album ''Dream Theater'' included an actual hidden song: an untitled piano and guitar duet that closes the album.
* {{Homage}}: The band has been known to perform "Album Covers" at their concerts, where they play the entirety of a classic album. Some of these albums are ''[[Music/IronMaiden The Number of the Beast]]'', ''[[Music/{{Metallica}} Master of Puppets]]'', ''[[Music/DeepPurple Made in Japan]]'' and ''[[Music/PinkFloyd The Dark Side of the Moon]]''.
** John Petrucci has admitted that "In the Presence of Enemies" is inspired by the Korean comic book ''Manhwa/Priest''.
* {{Instrumentals}}: Aside of ''Music/LiquidTensionExperiment'', the band has, only counting official studio album recordings:
** "The [[SdrawkcabName Ytse Jam]]", from ''When Dream and Day Unite''
** "Erotomania", from ''Awake''
** "Hell's Kitchen", from ''Falling into Infinity''
** "Scene Two, Part I: Overture 1928" and "Scene Seven, Part I: The Dance of Eternity", from ''Metropolis Part II: Scenes from a Memory''
** "Overture", from ''Six Degrees of Inner Turbulence''
** "Stream of Consciousness", from ''Train of Thought''.
** "Enigma Machine" and "False Awakening Suite", from ''Dream Theater''.
* IronicEcho: [[spoiler:"Open your eyes, Nicholas"]]
* LargeHam: The whole band, really, except Myung (whose performances still could be considered fairly hammy, but he himself is quite shy and reserved). It's part of the reason their music is such a LoveItOrHateIt affair. Amongst all of them, though, [=LaBrie=] is probably the hammiest. As for a musical example, the ''Black Clouds & Silver Linings'' album treats us to thunder, dissonant piano, heavy guitars, choirs, and organs. Oh, and that's just in the first minute of over an hour of music.
* LastNoteNightmare: Some songs have really weird segues at the end of songs:
** "Misunderstood" from ''Six Degrees of Inner Turbulence'' is notable due to the last third or so of the song fitting under this.
** "This Dying Soul", from ''Train of Thought'', also had a very sudden false ending, then about forty seconds of crazy soloing. (Not really a nightmare, just... weird)
** ''Octavarium'', has several in there for symbology. The entire album is full of fives and eights, and the weird endings are the five dead spaces that represent the black notes on a keyboard.
** ''Metropolis, Pt. 2'' features the protagonist, Nicholas, [[spoiler:going home, pouring himself a drink and listening to some calming music, before promptly being murdered by the hypnotherapist to the sound of a surprised yelp, the record being dislodged from the player, and static which leads off to....]]
** ''The Glass Prison'' which starts off ''Six Degrees of Inner Turbulence'' starts off immediately where the last song in ''Metropolis Part 2'' ended off (with gramophone static).
** Jordan's response to Mike leaving the band is in the form of a nice, quiet [[http://www.youtube.com/watch?v=cgqm8g95wwI piano and vocal improv]]...until he pulls a "Her Majesty" type ScareChord in the last 10 seconds.
* LeftTheBackgroundMusicOn: At the end of "Finally Free" the outro vamp is revealed to be playing on Nicholas' car radio.
* LongRunnerLineup: Type two; the [=LaBrie=]/Myung/Petrucci/Portnoy/Rudess lineup lasted for a bit over eleven years.
* LongRunners: They've existed in one form or another since 1986, which makes them one of the longest running ProgressiveMetal bands.
* LoudnessWar: Most of the material since ''Awake'' has been pretty badly clipped. The Official Bootlegs on Ytsejam Records are generally better about this (they're still fairly loud, but generally don't clip much), possibly because erstwhile drummer Mike Portnoy manages the label and the loudness war generally affects drums particularly badly.
* LyricalDissonance: They've used this a few times. "Scarred" closes with the lines "Learning from misery/Staring back at dissent/Leaving distrust behind/I'm inspired and content", but the music underlying the lines continues the gloomy mood of the rest of the song, and then transitions to a fairly dissonant instrumental fadeout. Meanwhile, "Take Away My Pain", an elegy for Petrucci's father, is given a cheerful major key melody.
* MohsScaleOfRockAndMetalHardness: Their 90's material is generally a 6 ("Surrounded", "Innocence Faded", "Hell's Kitchen", etc.) or a 7 ("Pull Me Under", "Metropolis Part 1", "6:00", etc.), while their 2000's material is generally a 7 ("The Great Debate", "The Root of All Evil", etc.) or an 8 ("The Glass Prison", "As I Am", etc.). 2011's ''A Dramatic Turn of Events'' is mostly a solid 7. Their softer songs are generally in the 3/4 range (except for Level 1 songs such as "Wait for Sleep", from ''Images and Words'', and "The Silent Man", from ''Awake'').
** Some instrumental sections (like the blastbeats in "A Nightmare to Remember") get as high as 9.
** On the whole, it can be hard to classify their songs on this scale due to prevalence of EpicRocking in their work and their corresponding habit of having different sections of their songs fall all over the scale. For example, "Pull Me Under" has sections that get as heavy as 8 (the chorus sections and the coda, most notably) and others that drop down to 1 or 2 (the midsection, the intro). Overall, this songs still is around a 7, though. This is a common problem for ProgressiveMetal bands, not surprisingly.
** Some of their '90s material can also arguably climb up to 8 overall - "The Mirror" and "Lie", most notably.
* MoodWhiplash:
** On ''Awake'', the serene acoustic "The Silent Man" abruptly transitions to the chugging opening riff of "The Mirror", which was the heaviest thing the band had done up to that point.
** In "Six Degrees of Inner Turbulence", the extremely manic and heavy "The Test That Stumped Them All" [[FadingIntoTheNextSong fades into]] the depressing and ridiculously soft-sounding "Goodnight Kiss".
** On ''Octavarium'', the uplifting Music/{{U2}}-esque "I Walk Beside You" is followed by the heaviest song on the album, "Panic Attack".
** On ''Systematic Chaos'', the over-the-top [[HeavyMithril fantasy-themed]] "The Dark Eternal Night" is followed by the somber, reflective "Repentance", part of the AA saga. "Repentance" is also this in the context of the AA suite, as it's the only ballad in the suite and is followed by "The Shattered Fortress", possibly the heaviest song in the whole suite since "The Glass Prison".
** In "Illumination Theory", the end of the serene string section cuts abrubtly to a very dry bass and drum riff.
* MundaneMadeAwesome:
** "Wither" is about writer's block, of all things.
** The album cover for ''Octavarium'' features a giant Newton's cradle, with one of the balls having the ''Majesty'' symbol on it.
* MurderBallad: Some parts of ''Metropolis, Pt. 2'' fit under this.
** Such as "Fatal Tragedy" and the first parts of "Beyond this Life" and "Finally Free"
* MusicIsPolitics: Most of Portnoy's lyrics from ''Falling into Infinity'' are about his disgust with record industry politics. After this album, the band would carefully negotiate contracts to ensure they had complete creative control over their recording process.
* NintendoHard:
** Playing any of this band's music in real life, which is why most of the actual covers and tributes don't make true justice to the originals.
*** John Petrucci said in an interview that one of the ways he keeps himself motivated to improve as a musician is by writing parts he can't actually play. Considering he's a gamer himself, this makes a lot of sense.
* NotChristianRock: On occasion, most prominently with "The Spirit Carries On". "The Bigger Picture" and "Surrender to Reason" have a few such moments, too. "Lines in the Sand" is another good example, and features Doug Pinnick of King's X (which is usually considered a ChristianRock band) as a guest vocalist. (Note that erstwhile drummer Mike Portnoy is Jewish, as is keyboardist Jordan Rudess.)
* OdeToSobriety: The whole point of the Twelve-Step Suite.
* OneWomanWail: The intro to ''Through Her Eyes'' on ''Metropolis, Pt. 2''.
* OneSteveLimit: Both averted and enforced. John Petrucci and John Myung were founding members of the band, breaking the limit. However, when Kevin James [=LaBrie=] joined the band before ''Images and Words'', he used his middle name as his stage name to avoid confusion with Kevin Moore.
** Mike Portnoy got replaced by Mike Mangini, so you still have to use a last name to describe Dream Theater's drummer when the context doesn't clear up which one you're talking about.
* ThePlan: In ''Metropolis, Pt. 2'', [[spoiler: Edward kills Victoria and Julian, then leaves a suicide note in Julian's pocket, making it appear as if Julian shot Victoria and killed himself. In other words, Edward literally gets away with murder. And it's not over yet! When Edward finally dies, he is reincarnated as the Hypnotherapist; at the end of the album, he murders Nicholas, the reincarnation of Victoria!]]
* PowerBallad: Quite a few, the best known being "Another Day", "Hollow Years" and "The Spirit Carries On".
* PrecisionFStrike: Generally, the band avoid swearing in their songs, which makes the line "I wish I weren't so fucked" in "As I Am" a classic example of this trope, made even better with the emphasis James [=LaBrie=] puts on "fucked". "Honour Thy Father" also has the lines "And have the balls to blame this shit on me" and "So fucking blind to the damage he has done", as well as a borderline ClusterFBomb in the spoken word section in the middle of the song (though slightly muffled by the music in parts).
** [=LaBrie=] has been known to throw in occasional uses of profanity during live performances in cases where there wasn't any in the studio versions. For instance, the line "I don't need your sympathy to get me through the day" (from "A Change of Seasons") has sometimes been sung as "I don't need your mercy fuck to get me through the day" and sometimes as "I don't need your fucking shit to get me through the day".
* ProtestSong: They don't delve into this much, and they studiously avoid being {{Anvilicious}} about it when they do, but they do have a few examples. "Prophets of War", without actually espousing conspiracy theories, questions whether the motives for the 2003 Iraq war were pure. Per WordOfGod, the title is a pun on "profits". "The Enemy Inside" is a protest against the treatment of war veterans who suffer from post-traumatic stress disorder, and the band has worked closely with the charity Save a Warrior, which advocates for veterans with PTSD. "The Great Debate" is a song about the then-divisive issue of stem cell research, although the band avoids taking a stance on it.
* PunctuatedForEmphasis: '''TIME! FOR! CHANGE! FIGHT! THE! FEAR! FIND! THE! TRUTH!'''[[note]]From "Prophets of War".[[/note]]
** "'''I! Am! The! LAST!'''"[[note]]From "The Dark Eternal Night".[[/note]]
** "'''I! WILL! LIVE ON! LIVE ON!'''"[[note]]From "A Change of Seasons".[[/note]]
** "'''TRAPPED INSIDE! THIS! OCTAVA! RI! UM!'''"[[note]]From "Octavarium".[[/note]]
** "'''BUILD! ME! UP! BREAK! ME! DOWN!'''"[[note]]From "Build Me Up, Break Me Down", natch.[[/note]]
* PutOnABus: Charlie Dominici and Derek Sherinian. Although both of them returned as guests for the anniversary concert of ''When Dream and Day Unite'' in 2004.
** Their first vocalist, Chris Collins, got this treatment as well. The band were already pissed at him for his poor vocal range, inconsistent live performances, and bad behaviour on stage, which culminated in an incident where Collins was introducing the band and insulted Myung, referring to him as being "from the jungles of Korea". The band ultimately forced him to leave, and ended up replacing him with Charlie Dominici.
* ReligionRantSong: While they have several examples that qualify as NotChristianRock, they also have several of these, such as "In the Name of God" (which generally protests religious war and terrorism, though it's specifically about the Branch Davidian siege in Waco in the early '90s) and "Blind Faith" (which protests the use of religious faith as an excuse for ignoring terrestrial suffering).
* RickRoll: [[http://www.youtube.com/watch?v=5egA3dZ91Dc Never gonna wither you up]]. It works so well you'll never listen to "Wither" again without thinking of Rick Astley.
* RockOpera: ''Metropolis, Pt. 2'' and ''The Astonishing''.
* {{Sampling}}: They're quite fond of sampling films and television shows in their songs. Kevin Moore and Mike Portnoy's songs in particular featured liberal use of this.
* SanitySlippageSong: An awful lot of their songs. Possibly up to half of them on some of their albums, honestly. In particular, "Six Degrees of Inner Turbulence", "A Mind Beside Itself", and "Octavarium" have this as overarching concerns of the whole song or at least of specific subsections. And of course "Panic Attack" kind of speaks for itself; it even ''sounds'' like a panic attack.
* SelfTitledAlbum: Their 12th studio album.
* SdrawkcabName: "Ytse Jam" is really just the band's first name written backwards. Doubles as PunnyName.
** The "Majesty Demos" bootleg actually has a track on it called "Gnos Sdrawkcab", which is just a reversed recording of John Petrucci shredding for a few seconds.
* ShootTheShaggyDog: [[spoiler: The ending to ''Metropolis, Pt. 2''.]]
* ShoutOut: "Full Circle", the third step of "Octavarium", from the namesake album, its basically a countdown of {{Shout Out}}s to every kind of stuff which influenced DT in one way or another.
** ''Once in a [=LIVEtime=]'' has plenty of these:
*** "Trial of Tears" references, at various points, [[Music/{{Rush}} "Xanadu", "The Trees"]] and the jingle from ''Film/CloseEncountersOfTheThirdKind''.
*** "Peruvian Skies" references [[Music/PinkFloyd "Have a Cigar"]] and [[Music/{{Metallica}} "Enter Sandman"]].
*** "Take the Time" has portions of [[Music/LynyrdSkynyrd "Free Bird"]] and [[Music/LedZeppelin "Moby Dick"]].
*** "Voices" opens with John Petrucci playing [[Franchise/StarWars "Binary Sunset".]]
** In ''Live Scenes from New York'', "A Change of Seasons" has a bass solo with the Major League Baseball theme and a guitar break with the opening to ''WesternAnimation/TheSimpsons''.
** "The Spirit Carries On" sounds straight out of Music/PinkFloyd's ''Music/TheWall''; the song was notably inspired by that and its follow-up ''Music/TheFinalCut''.
*** "In the Presence of Enemies" {{bookends}} ''Systematic Chaos'' in much the same way "Shine On You Crazy Diamond" bookends ''Music/WishYouWereHere'', fades in and out with wind sounds, and opens its second segment with a bass line. The long instrumental opening to "Octavarium" also seems like a tribute to "Shine On", which opens much the same way.
** Like other metal bands, the band has recorded several covers of their favourite artists.
** Their lyrics are full of these; for instance, "6:00" contains allusions to Creator/JamesJoyce and Creator/RobertFrost, and their songs frequently contain samples of (often quite literary) films such as ''Literature/ARoomWithAView'' and ''Film/DeadPoetsSociety'', as well as more mundane sources such as a news commenter discussing OJ Simpson and a Jay Leno interview.
* ShoutOutToShakespeare: "Pull Me Under" ends with a direct quote from ''Theatre/{{Hamlet}}'' and the whole song is [[WholePlotReference sung from the title character's perspective]].
* ShownTheirWork: Their depictions of psychological disorders, which are plentiful in their lyrics, are quite detailed, accurate, and respectful. Some of the lyrics ("Constant Motion", for example) are written from personal experience, while the band members did research for some of the others (such as "Voices"). It shows. The depiction of recovery from alcoholism in the Twelve-Step Suite is also an example, which is also a case of WriteWhatYouKnow.
* SiameseTwinSongs: There are a few examples in their discography, such as "Wait for Sleep"-"Learning to Live", "The Mirror"-"Lie", "War Inside My Head"-"The Test that Stumped Them All", and "Vacant"-"Stream of Consciousness". These pairs of songs are sometimes played together live, but sometimes not. "A Mind Beside Itself" also counts if you consider it to be three songs rather than a single song divided into three tracks; the first two movements are almost always played live together, but sometimes they finish off the suite with another song rather than "The Silent Man".
* SopranoAndGravel: Mike Portnoy sometimes used a deeper voice than James [=LaBrie=] on songs such as "A Nightmare to Remember" and "Prophets of War". The version of "The Spirit Carries On" on both ''Live Scenes from New York'' and ''Score'' features vocals from Theresa Thomason, and also in their version of "[[Music/PinkFloyd The Great Gig in the Sky]]".
* SpokenWordInMusic: Featured heavily. Notable songs include "Take the Time", "6:00", "Voices", "Space Dye Vest", "A Change of Seasons", "Regression", "Finally Free", "The Great Debate", "Goodnight Kiss", "Honor Thy Father", "Sacrificed Sons", "Repentence", and "Breaking All Illusions".
* StartMyOwn: Charlie Dominici, former vocalist (though only hardcore fans even know they ''had'' a vocalist other than James), started his own band called Dominici in the early 2000s.
* {{Supergroup}}: Each of the members has been involved with one at some point. For fun, look up any of the members on That Other Wiki and check the "Associated Acts" section of the info-box. To list a few (there are a lot):
** James [=LaBrie=] has provided vocals for Music/{{Ayreon}}.
** John Petrucci, Mike Portnoy, and Jordan Rudess are ''Music/LiquidTensionExperiment'', along with Tony Levin, who's no slouch himself and played with Music/KingCrimson and members of Music/{{Yes}} and Music/{{Genesis}}.
* TakeThat: "As I Am", wrote by John Petrucci, is directed to Music/{{Queensryche}}'s Mike Stone. Specifically, it was written after Mike tried to give John some tips on playing guitar (hence the line "Don't...tell me how to write").
** "Honor Thy Father" is basically 10 minutes of [[CallingTheOldManOut Calling The Step-Old Man Out]], from Mike Portnoy's part.
** "Never Enough" was wrote by Portnoy as one towards their Unpleasable Fanbase.
** Kevin Moore wrote "6:00", which was about being sick of working with the band.
** The unreleased "Raise the Knife" is a bitter rant from Portnoy about Moore leaving the band before ''Awake'' was released.
* {{Theremin}}: Briefly in "A Nightmare to Remember".
* TomatoInTheMirror: "The Killing Hand" ends with the narrator coming back from the past only to discover that in destroying the Killing Hand, he ended up killing another version of himself.
--> I laugh at what I've done
--> I am the Killing Hand
* TropeCodifier: They are very strong candidates for being the codifiers of ProgressiveMetal as a whole. Most subsequent bands in the genre have been influenced by them in one fashion or another, even if that's simply in trying not to imitate them. They could also count as {{Genre Popularizer}}s, as they are one of the most commercially successful acts in the genre, despite having only had one major hit (then again, prog has not generally been focused on hit singles in the first place).
* TruckDriversGearChange: The final chorus of "Moment of Betrayal" is played three semitones higher than the rest of the song prior.
** The final chorus and outro of "I Walk Beside You" is played two semitones higher than everything else in the song.
* UncommonTime: The band '''loves''' using odd time signatures in their songs, especially during instrumental sections.
** "The Dance of Eternity" is particularly infamous for this with [[UpToEleven over a hundred time signature changes in just over six minutes]]. The page image for the trope is Mike going over the many time signature changes in the second half of the song.
** Other songs that use this very heavily include "Learning to Live", "Erotomania", "A Change of Seasons", "Hell's Kitchen", "Blind Faith", "The Test That Stumped Them All", "Honor Thy Father", "Stream of Consciousness", "Octavarium", "In the Presence of Enemies", "The Dark Eternal Night", "A Nightmare to Remember", "Lost Not Forgotten", "Outcry", "Breaking All Illusions", "Behind the Veil", and "Surrender to Reason".
** "6:00" subverts this. The main riff is in 4/4, but it's syncopated in such a way that makes it sound like alternating bars of 7/8 and 9/8.
* WeReallyDoCare: James [=LaBrie=] contemplated quitting the band after he got really bad food poisoning, which led to him vomiting his guts out, which led to damage to his vocal cords that were never quite the same. The rest of the band talked him out of it.
* WhamLine: [[spoiler: "Open your eyes, Nicholas"]]
* WhereItAllBegan:
** Played straight in "The Killing Hand".
** To an extent in "A Change of Seasons".
** "Octavarium" is about this trope.
* WholePlotReference: "Pull Me Under" to ''Theatre/{{Hamlet}}'', "In the Presence of Enemies" to ''Manhwa/{{Priest}}'', ''Music/TheAstonishing'' to "Music/TwentyOneTwelve". The first two are confirmed as intentional by WordOfGod.
* YouKeepUsingThatWord: "Conscience" in place of "consciousness" in both "Vacant" and "Octavarium".
----