The Cadanceverse is an AlternateUniverse of ''WesternAnimation/MyLittlePonyFriendshipIsMagic'' by the prolific [[Fanfic/RainbowDoubleDashsLunaverse Lunaverse]] author [[http://www.fimfiction.net/user/GrassAndClouds2 GrassAndClouds2]]. In a sentence, it can be summed up as ''My Little Pony: The SongFic Universe''.

In this universe's backstory, ''both'' Celestia and Luna went insane. As their madness grew, they started to clash over the sunrise and sunset, about the precise point where one's rule ended and the other's began. Eventually, Star Swirl the Bearded proposed that they compromise by creating a golem-alicorn to control those two areas: and thus Mi Amore Cadenza was "born". The creation of a third alicorn delayed the inevitable for a hundred and fifty years, but eventually tensions between the two sisters broke out into open war, and on such a scale that Cadance was forced to act. Wielding the Elements of Harmony against her elders, she sealed them away, and began to rule in their place.

A thousand years later, all is well in Equestria.

Being a great lover of music, Cadance is in the habit of mentoring young musicians. One such student is cellist prodigy Octavia Philharmonica. Dedicated and brilliant, she studies her art relentlessly, to the point where she doesn't socialize with others. This worries Cadance, who points out that, at the very least, a musician has to work with others to perform professionally. Octavia, defending her habits, insists that she can do just that, and asks Cadance to give her a chance to demonstrate it. Cadance reluctantly allows Octavia to represent her at the Vernal Equinox Celebration, in Ponyville.

It doesn't take long for Octavia to determine what Ponyville is planning for the Equinox. To her dismay, it is (by her standard) utterly mediocre, and she takes it upon herself to ''improve'' it. Trying to shove the square peg of what Ponyville likes into the round hole of what Octavia thinks is good goes about as well as you may think, and she soon finds the town against her, much to her incredulity. When things reach the point where it can't possibly get any worse, they do, in the form of Celestia and Luna breaking free. They promptly resume their old war, and Cadance flies after them to do damage control. Octavia (one nervous breakdown later) learns that several local musicians plan on making a perilous journey into the Everfree Forest. It seems that one of them had once heard a legend of a castle there, where the Elements of Harmony can be found...

The Cadanceverse is [[SharedUniverse open for other authors to write in]], and has a group that can be found [[http://www.fimfiction.net/group/199063/the-cadanceverse here]]. Some authors notes on the characters and universe can be found [[http://www.fimfiction.net/blog/106319/home-for-holidayscadanceverse-part-1 here]] and [[http://www.fimfiction.net/blog/106387/cadanceverse-2 here]].
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!This FanFic series contains examples of the following tropes:

* ActionGirl: All the Musical 6 to some extent, with Medley being the best example.
* AGlitchInTheMatrix: A leshy traps the group in an illusion that they're still moving, when really they've been moving in a circle. However, Octavia notes that the background noise hasn't changed, which cues her to the fact that something's up.
* AgreeToDisagree: Rarity and Fluttershy ultimately come to this decision in regards to their differing views on charity work.
* AlphaBitch:
** Silver Spoon is convinced she's better than every other foal in Ponyville, and manages to be insulting to them ''[[InnocentlyInsensitive even when she thinks she's being nice]]''.
** Diamond Tiara is worse. While Silver Spoon is smug, self-centered and condescending, she at least has enough of a sense of decorum to not go out of her way to make others miserable, the way Diamond does.
* AllLoveIsUnrequited: Lyra's crush on Bonbon, Red Tape's crush on Lyra.
%%* AlternateUniverseFic
* AmbiguouslyBi:
** [[spoiler: Prince Blueblood]] has a steady coltfriend, but casually suggests letting Rarity and Fluttershy join in on the action.
** When drunk, Medley flirts with mares and stallions alike. There's no comment on what her preferences are when sober.
%%* AndroclesLion: The kraken in the Everfree.%%Zero-context example, needs some explanation
* AnythingYouCanDoICanDoBetter:
** Trixie and Twilight get into one of these arguments. In fact they even sing a variation of the song about spell casting.
** Silver Spoon considers herself superior at everything to all other foals in Ponyville. The fact that Sweetie Belle is a better singer than her sends her into melt down. It turns out, this is [[FreudianExcuse because]] she's convinced that she has to be perfect to live up to her father's standards. He eventually sets her right about this.
* ArtShift: Usually, song lyrics are written in the color of the pony singing them.
* TheAtoner:
** Octavia sees helping stop the tyrant alicorns as this for her lifelong selfish attitude.
** Luna and Celestia also become this after being purified by the Elements.
%%* AuthorAppeal: Music.
* BeamMeUpScotty: When outlining her plan to deal with the Ursa Minor, Vinyl uses the oft-misquoted line "music soothes the savage beast". Octavia is quick to point out it's actually "savage breast".[[invoked]]
%%* BeleagueredAssistant:
%%** Pageturner, to Octavia.
%%** Spike, to Trixie.
* BerserkButton: Harming, or even insulting, her animals is this for Fluttershy.
* BigNo: The copy of Nightmare Moon when Fluttershy breaks free of its LotusEaterMachine.
* BrainwashedAndCrazy: Lyra and Medley are briefly subjected to this by the golem in the castle.
* BunnyEarsLawyer: Vinyl. Despite her oddities, everything she does is aimed towards helping her become a better musician.
* CallForward: ''The Race That Ate Friendships'' has an early scene of Octavia going through her morning routine, including meeting several ponies around town. ''Hoe Down'', written after but taking place several months earlier, has a similar scene Lyra showing Octavia around town to get used to it. This is meant to contrast how awkward Octavia was with the town at first with how comfortable she becomes later on.
* CantHoldHisLiquor: Medley. Octavia also gets tizzy pretty easily, but she at least has little experience with alcohol.
* TheClan: The Apple family, of course, but also Vinyl's family. About fifty of them show up at the hoe down, and she says that's not even all of them. [[StrongFamilyResemblance And they all look alike.]]
* {{Cloudcuckoolander}}:
** Vinyl and Lyra both come off as this at times.
** Pinkie Pie, of course. Much to the supreme annoyance of Octavia.
* CutenessProximity: Fluttershy's reaction to seeing the purified Celestia and Luna (who are both turned back into fillies). Bluenote has to remind her to breathe.
* DamnedByFaintPraise: Twilight tells Vinyl (completely seriously) that she could be good enough at magic to be one of Twilight's students. Vinyl gets very upset by this - goofy personality aside, she's a ''very'' hard-working pony who spends almost all her time improving her music, perfecting her equipment, and advancing her magic, as well as being the ''Element of Magic'', and does not enjoy being patronized.
* {{Dismotivation}}: Bluenote is a mild case; she didn't have enough drive to hone her skills to professional level. She's accepted this, however, and is happy with her current position as a music teacher.
* TheDitz: Fluttershy's assistant, and Vinyl's niece, Cat Scratch.
* DoNotCallMePaul: Apparently, "Vinyl" is just a nickname. Her actual name is Virola, and she does ''not'' seem to like it.
* {{Dubstep}}: Vinyl calls it "Wubstep". Octavia calls it awful.
* ElegantClassicalMusician: Octavia, to the point where it becomes a flaw.
* EvilIsHammy: Celestia clearly takes after her [[Fanfic/RainbowDoubleDashsLunaverse Lunaverse]] counterpart.
* EvilVersusEvil: Celestia/Burning Sun and Luna/Nightmare Moon
* {{Expy}}: Scottish, foul-mouth chef Ram Sea is a fairly obvious one to the real-life Gordon Ramsey.
* FinishingEachOthersSentences: The Cakes do this.
* FishOutOfWater: Octavia has trouble adjusting to life in Ponyville at first.
* FriendlyRival:
** [[spoiler: Twilight declares herself this to Vinyl Scratch.]]
** Rainbow Dash and Ditzy Doo have this in regards to their shared goal of getting into the Wonderbolts. Lyra, though, seems to think it's just a cover for some {{UST}}. [[spoiler: Judging by the events of the hoe down, she's right.]]
* FriendToAllLivingThings: Fluttershy from the Musical 6. Zecora is this as well, going to substantial lengths to protect a wounded, trapped kraken.
* FullNameUltimatum: Vinyl's mother calls her by her full name, Virola Yvonne Scratch, when mad at her.
* GenkiGirl: Vinyl, whenever on stage, and Lyra, whenever awake.
* {{Golem}}: [[spoiler: Cadance is one]]. The C6 also have to fight one as their final obstacle before they reach the Elements of Harmony.
* HeroicBSOD: Octavia loses it after Shining Armor and Pageturner tell her what they think of her.
* HeroicSelfDeprecation:
** Fluttershy views herself as a horrible pony for spending money that could otherwise go to charity on herself, even if only for a minor luxury like buying a nice dress.
** Octavia berates herself whenever she feels that she's performed some shortcoming or failure as a friend.
* {{Homage}}:
** There are a few to the [[Fanfic/RainbowDoubleDashsLunaverse Lunaverse]]. For example, Trixie being from Neigh Orleans (and a member of the nobility).
** Twilight's method for moving a sleeping Ursa is to, essentially, play VideoGame/{{QWOP}}.
** Vinyl misquotes the "music soothes the savage breast" line and Octavia corrects her, referencing the scenes in Fanfic/LifeInManehattan where Octavia bungles the line and Twilight fixes it.
* HotBlooded: Lyra Heartstrings.
* HypocriticalHumor: Octavia's comments about the absurdity of Bon Bon's ObsessivelyOrganized system of storing things in her kitchen is immediately followed by an example of her own obsessive scheduling habits.
* IdenticalStranger: Fiddlesticks' resemblance to Octavia is touched upon, but not directly addressed. And Octavia herself is oblivious to it.
* InnocentlyInsensitive:
** Silver Spoon can sometimes be mean even when she thinks she's being nice.
** Bluenote doesn't ''mean'' to insult Octavia's mother's naan recipe, but her improvisation towards baking it, and her laughing off the poor results, makes it seem like she's mocking Octavia's fond memories of baking it with her mother.
* ItsAllAboutMe: Octavia, although not as bad as many others with this trope, has a certain loss of perspective. It doesn't occur to her that Medley would be anything less than thrilled to show off her wares to Cadence, and she concludes that the reason why Ponyville likes crap music is because they don't know what ''good'' music is. Once she realizes she has this flaw, she dedicates a lot of her time to trying to fix it, and worries that she's slipping back into bad habits.
* {{Jazz}}: Bluenote's preferred genre.
* JerkAss: Medley and Octavia have their moments.
* KneelBeforeZod: Burning Sun and Nightmare Moon demand this from the ponies of Equestria. And Cadance. And each other.
* KrakenAndLeviathan: The Musical 6 must deal with one on their way to the Elements.
* LooseCanon: The story "Blitz Carmen" is listed as possibly being in-universe fan fiction.
* LotusEaterMachine: Nightmare Moon's final trap to stop anypony from reaching the Elements is one of these. It almost works, too, trapping five of the Musical 6 in their own personal paradises (Octavia gets a life of solitude to perfect her craft; Medley owns a prosperous business; Lyra marries Bonbon; Bluenote indulges her hedonistic desires and loafs about; Vinyl is the most famous DJ in Equestria and performs at all kinds of epic concerts). Only Fluttershy can resist, because she is too focused on caring for others to allow herself to rest in her own paradise.
* MadScientist: Carrot Top is a comedic one, always seeking new developments in farming and food, usually with hilarious results when things go wrong.
* TheMagnificent: The Great and Powerful Trixie.
* MamaBear: Fluttershy, to her animals, especially Angel.
* TheMedic: Fluttershy.
* MissingMom: Silver Spoon's mother's absence is apparently planned to be a plot point in her story arc, though [=GrassAndClouds2=] and the other contributors are still debating in what way.
* MythologyGag: At the end of the hoe down, Applejack leads the town in a version of "Raise This Barn" dedicated to honoring the Elements of Harmony.
* NiceToTheWaiter: Implied to be the case with Silver Spoon's relationship with her maid Betty Buttle, if only because she's been with her family for years, whereas Diamond Tiara's servants usually quit after a few months.
* NoIndoorVoice: Celestia/Burning Sun.
* NoodleIncident:
** Fluttershy once let Lyra crash at her place after Ditzy and Raindrops dropped a piano on her house.
** Vinyl once got into a drinking contest with Big Macintosh that ended with them filling the town fountain with cider and jumping into it.
** Trixie apparently once accidentally launched a firework into a Duke's mansion.
** When asked why Red Tape dislikes her so much, Vinyl only says that it's a long story, and that "the fire wasn't that bad".
** Bluenote and the foals she was escorting get lost during the Running of the Leaves, and when they finally show up at the finish line, Vinyl asks what took so long. Bluenote's response:
--->"The usual; got a bit off track, found a tribe of pygmy elks in the forest, saved them from a horde of ravenous miniature giant space hamsters. Me and the foals got crowned as princesses, even Titchy."
*** As a bonus, Lyra asks about the elks' queen, implying she's met them as well at some point.
** Vinyl's wub cannon once malfunctioned and trapped Scootaloo in a tree since it kept firing at her when she tried to get down.
** Apparently the last time Medley [[CantHoldHisLiquor got drunk]], she somehow ended up on top of Town Hall with both a mare ''and'' a stallion. [[spoiler: It happens again after the hoe down.]]
** Carrot Top apparently once brought some trees to life somehow.
* NoSocialSkills: Octavia thinks that Trixie is some kind of expert in friendship because everypony likes her. It's clear to the audience, however, that they only like her because she parties like a rock star.
* ObsessivelyOrganized: Octavia, when it comes to setting and following a schedule. Similarly, Bon Bon is very particular about how she stows things in her kitchen.
* ObstructiveBureaucrat: The Mayor's assistant, Red Tape... at least to Vinyl.
* PowerOfRock: Vinyl uses it to beat [[spoiler: the golem guarding the Elements]]. All six ponies use it to then [[spoiler: defeat the tyrant alicorns with their Element-infused instruments]].
* PrinceCharming: Unlike his canon counterpart, Blueblood actually is this, being everything Rarity had hoped for [[spoiler: (except for being gay)]].
* PrincessesRule
* TheReasonYouSuckSpeech: Between the impending apocalypse and Octavia not presenting herself well, both Shining Armor and Pageturner chew her out.
* RelatedInTheAdaptation: Cheerilee is the mayor's daughter.
* RoyalsWhoActuallyDoSomething: Princess Cadance has been helping to run the nation for a millennium, of course, and she also teaches music to her students. Additionally, Prince Blueblood (of the friendly nation of Monacolt) is similarly active, and is also mentioned to be quite a skilled boxer and harpist.
* RoboTeching: Knowledge of Syncopation (playing back-beats a little too early or late) allows Vinyl to change her spells paths.
* SharedUniverse
* ShoutOut:
** A few to the Lunaverse.
** The Elements are said to have been used to defeat [[BigRedDevil Tirek]], Grogar and [[BlobMonster the]] [[HatePlague Smooze]], all villains from the original ''Franchise/MyLittlePony'' cartoons.
** A discussion over reward money mentions [[Film/MontyPythonAndTheHolyGrail the Knights who say "Neigh"]], [[Myth/ClassicalMythology a figure known as "Piebaldicuss" who slew a gorgon]], and [[Film/JasonAndTheArgonauts the Golden Mane-Tail]].
** At one point, Bluenote says she saved Elk from [[VideoGame/MassEffect Miniature Giant Space Hamsters.]]
* ShownTheirWork: The author used various obscure cryptids for the threats in the Everfree Forest.
* ShipTease:
** Snips apparently has a crush on Apple Bloom.
** Octavia and Big Macintosh are attracted to each other, but neither is comfortable with advancing their relationship to anything serious.
* ShrinkingViolet: Fluttershy, of course, but also Big Mac, due to teasing about his size when he was younger.
* TheSmartGuy:
** Vinyl, who acts as the team strategist.
** Octavia, though mostly restricted to history, art, and other things that she picked up with her classical education.
** Twilight also qualifies, although her [[CripplingOverspecialization knowledge is virtually all magical theory]].
* SoapboxSadie: Fluttershy.
* SongFic: Inevitable, as each of the Cadance-Six produces music in some way. So far, music has been taken from:
** Theatre/AnnieGetYourGun, with Trixie and Twilight singing 'Anything You Can Do (I Can Do Better)'
** WesternAnimation/BeautyAndTheBeast‎, with Prince Blueblood described in the manner of Gaston:
--> "No colt's fair like Blueblood!"\\
"Debonair like Blueblood!"\\
"Nopony's cologne sweetens air like Blueblood's!"\\
"His scent, I've been told, is intoxicating!"\\
"My what a guy, Blueblood!"\\
--Rarity and the ball crowd
** Theatre/{{Chess}}, with the Ponyville citizens singing 'Merano.' It's been noted that this is one of [[AuthorAppeal GrassAndClouds2's]] favorite musicals.
** Music/{{The Cruxshadows}}, with the alicorns singing 'My World'
** Music/LancashireHotpots, with Bluenote quoting from 'The Baking Song'.
** Theatre/Oliver‎, with Chef Ram Sea's cooks singing a take on 'Food, Glorious Food'
** Music/ShirleyBassey, with Rarity singing 'Big Spender' about Blueblood.
** Music/{{Survivor|Band}}, with Vinyl singing 'Eye of the Tiger' (er, pony).
** Music/{{Voltaire}}, with Zecora singing 'Beast of Pirates Bay' and the Musical 6 singing 'Riding a Black Unicorn'
** Music/WeirdAlYankovic, with Bluenote singing 'Everything You Know Is Wrong'
** Nursery rhymes tend to show up whenever foals are involved. Of note is 'Hush Little Baby,' which Sweetie Belle sings to her sister and then again at Tootsie Flute's cutecenara.
* SoProudOfYou: Cadance to Octavia after she and her friends defeat the tyrant alicorns.
* SesquipedalianLoquaciousness: When Twilight uses complex words to describe her magic studies, Trixie accuses her of doing it to mess with her. Twilight then proceeds to do just that.
* StraightGay: [[spoiler: Prince Blueblood]]. Though comments made when he goes off with his coltfriend [[AmbiguouslyBi suggest they're bi]].
* ThisCannotBe: Burning Sun says this word-for-word when the Musical 6 activate the Elements of Harmony. Nightmare Moon tells her to shut up and focus on killing them.
* ThirdPersonPerson: Trixie. It rubs off on Twilight and Spike a few times.
* UpperClassTwit: Trixie. She travels Equestria throwing huge parties and putting on magic shows, spending vast amounts of money to do so. As the heir to the Duchy of Neigh Orleans, she can afford it.
* VillainousBreakdown: Both Burning Sun and Nightmare Moon fall apart in panic when the Musical 6 activate the Elements of Harmony.
* VillainsNeverLie: Octavia realizes that Burning Sun and Nightmare Moon are telling the truth about [[spoiler: Cadance being a golem]] because they're both sticking to the story; if one was lying, the other would expose it to knock them down a peg.
* WeUsedToBeFriends: After Pageturner chews out Octavia, she disowns her as a friend, and refuses Octavia's later attempt to make amends.
* WhyDidItHaveToBeSnakes: Angel has a fear of magic, and thus unicorns in general.
* YeOldeButcheredeEnglishe: Burning Sun insists on speaking like this.
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