->''"I'm sure viewership would triple if I had one of those crappy cartoon theme songs that bludgeons you over the head with the blunt end of the show's premise."''
-->-- '''Strong Bad''', [[WebAnimation/StrongBadEmail sbemail]] [[http://www.homestarrunner.com/sbemail155.html #155]]

A ThemeTune which explains, fairly specifically, the premise of the show. An OpeningNarration in verse. It might also throw in an {{Introdump}} for the central characters during the middle 10 seconds.

This was fairly standard for the early {{sitcom}}. Later sitcoms moved away from this form in favor of the ThematicThemeTune, and then toward the SurrealThemeTune. Today, the Expository Theme Tune is limited mostly to children's programs. ''Series/GilligansIsland'', the most famous, used it specifically due to ExecutiveMeddling, so that people who tuned in after the pilot wouldn't get lost. Many kids' shows that use it don't even ''have'' a pilot, or air episodes out of order. (''WesternAnimation/{{Animaniacs}}'' and ''WesternAnimation/{{Freakazoid}}'' are the big examples.)

Some shows might use the Expository Theme Tune as an excuse to [[OneWePreparedEarlier dump you into the action right away]], since you already know the premise. Conversely, if the Expository Theme Tune would spoil the premise of the premiere, you might not see it on the first episode.

This style of ThemeTune is also the most common for a ShowWithinAShow, and is practically universal when the fictional show is meant to be mocked.

A common Subtrope is the BraggingThemeTune and ThemeTuneRollCall.

Compare with the AnimeThemeSong and the ThemeTuneRap.

!!Example Subpages:

* ExpositoryThemeTune/{{Anime}}
* ExpositoryThemeTune/FanWorks
* ExpositoryThemeTune/{{Film}}
* ExpositoryThemeTune/LiveActionTV
* ExpositoryThemeTune/VideoGames
* ExpositoryThemeTune/WesternAnimation

!Other Examples:


* Despite appearing in a non-audio medium, the Comicbook/{{Blackhawk}}s gained their own theme tune, complete with sheet music, in a 1942 comic. A modern recording of "The Song of the Blackhawks" can be heard [[http://www.comictreadmill.com/CTMBlogarchives/2005/2005_Individual/2005_05/000789.php here]].

* The children's horror series ''Literature/{{Vampirates}}'' has a theme tune of sorts. It's on the back of the book, and characters sing it in story. It describes the title creatures.

* ''Machinima/Supermarioglitchy4sSuperMario64Bloopers'' has one, heard only in "Ssenmodnar 4".
-->''Oh, my God''\\
''Here we go again''\\
''Come on, watch this video 'till the very end''\\
''With Mario the Retard and [=SMG4=] the Idiot''\\
''Come on everybody it's Mario Bloopers!''

* "Hey, Hey, we're Music/TheMonkees / and people say we monkey around / but we're too busy singing / to put anybody down..." ([[Series/TheMonkees also fits into the category above]])
* Music/TheAquabats:
** Technically this trope but with no actual show to expose [[Series/TheAquabatsSuperShow at the time]], "Theme Song" tells a rather intricate {{backstory}} for the band before mentioning that [[ViewersAreGoldfish they're the Aquabats]] a few times.
** "The Wild Sea!" is done in the style of one, about a fictional adventure show staring a young man, his father, and their Viking sidekick.
-->Sailing on and on and on and on\\
Into the ocean, into the sun\\
Our boat, a Viking, my dad, and me\\
On the Wild Sea!
* "Cartoon Heroes" by Music/{{Aqua}} is an expository theme of this type for a completely fictional TV show (the video does a good job of being the title sequence).

* ''[[Pinball/TimeMachineDataEast Time Machine]]'' from Creator/DataEast plays one during the end-of-game karaoke mode.
-->"Time Machine, where you go back in time..."

[[folder:Professional Wrestling]]
* "Whose that jumping out the sky? [[Wrestling/ReyMysterioJr R-E-Y Mysterio]], here we go! When the mask's out the girls they pass out, the boys just blackout, better tap out!"
* "Wrestling/{{Chris|Hero}} is awesome! He's as hot as it gets, the type to drop you quick, with a mafia kick!"[[/folder]]

[[folder:Puppet Shows]]
* ''Series/CaptainScarletAndTheMysterons''. The opening titles have spoken narration. The original closing theme was instrumental, but a group was later recruited to record a vocal version:
-->''Captain Scarlet / He's the one who knows the Mysteron game / and things they plan''
* And then there is the theme tune to ''Series/TheMuppetShow'' (you know the words).

[[folder:Web Animation]]
* ''Limozeen: but they're in space!'' from the ''WebAnimation/HomestarRunner'' universe.
** Strong Bad also demonstrates what it would be like if he had one of these in the Sbemail "Theme Song" (Which also provides the page quote).
--> ''Strong bad, he's a wrestleman/ He's the email-checkin'-est guy in the land...''
* ''BamanPiderman'': ''"I'm Baman!" "I'm Piderman!" "I come over da house!" "WE'RE BEST FWIENDS!"''
** Actually, the theme song wasn't present in the first two episodes, and the third episode actually involves them creating the theme song.
* [[WebAnimation/WackyGameJokez4Kidz WGJ4K]] "Mickey was a small time crook on the streets of NYC, he was stolen from the streets by an evil corporation called VGV, he is forced to write direct and star in a video game comedy show broadcasted in the net.."
* ''[[WeeblAndBob Cat Face]]'': Cat Face, [[CaptainObvious he's got a big cat's face]], [[DepartmentOfRedundancyDepartment he's got the body of a cat, and the face of a cat]], and he flies through the air, 'cause [[RunningGag he's got a cat face]], Cat Face!
* ''WesternAnimation/BojackHorseman'''s closing theme: "Back in the 90s, I was in a very famous TV show...".

[[folder:Web Original]]
* ''"Lee likes playing videogames/And when you really think about it, that's not really so strange/But you would wonder if it's why the man was put on this Earth/it's time to reevaluate how much a picture is worth/You can be informed and entertained/No need to explain, watch the review of a game/Lee is [[Website/ThatGuyWithTheGlasses Still Gaming]]!/And I'm pretty sure that is something that won't ever change/Lee is Still Gaming/and it won't just as long as he lives/as long as there are games."''
* WebVideo/TheAngryVideoGameNerd: "''He's gonna take you back to the past/To play the shitty games that suck ass...''"
* The [[http://www.thestream.tv/watch.php?v=1898 Doc Mock's Movie Mausoleum]] theme starts out this way, before switching over to heavy metal screaming of the title halfway through; "''[[PunctuatedForEmphasis Doc! Mock's! Movie Mausoleum!]]''"
* ''WebVideo/AtopTheFourthWall'' has a theme song that lists off [[WebVideo/AtopTheFourthWall Linkara's]] name, possessions, and mission, along with some of the stuff he reviews.
** For his anniversary show, the extended version of the theme appeared, including a verse which focuses on Linkara's pet peeves ("''They made ''Film/{{Watchmen}}'' without the slimy squid''") and [=At4W=]'s supporting characters ("''He'll have you know that's pretty low / But not like the standards of the 90's Kid''")
* WebVideo/MarzGurl counted down [[http://thatguywiththeglasses.com/videolinks/ir/marzgurl/reviews/8784-top10redu 10 of them]] from various studios.
* TheLegendOfNeil's theme song explains exactly how Neil ended up inside the game, then has a very hurried follow-up summarising events up to the beginning of the episode.
* "WE BOUGHT TOO MANY GAMES!/Now we gotta play them all.../SO ALL ABOARD THE ''WebVideo/{{STEAM TRAIN}}!''" ("Choo-choo!")