Undertale: Complete OST (101/101) (Update 160525)

Uploaded on Apr 29, 2016

A compilation of piano arrangements of tracks from the original soundtrack of Undertale (by Toby Fox). An amazing game with an even more amazing soundtrack.

There's no shortage of Undertale OST arrangements out there, even here on Musescore.com. However, this will be how I reward myself for finishing freshman year at college =3

I will update this for as long as I am motivated to continue arranging (inb4 detemmienation jokes). The last time I tried this (with the MapleStory OST, 4 months back), I lasted about a week. We'll see how this goes.

All scores are human-playable.

This score displaces Assault.


Update 160525: All done, phew! Never thought I'd make it this far.

I nominate this score for longest solo piano score on musescore.com (130+ minutes, 200+ pages).


Progress Log:
160428 01 Once Upon a Time, 04 Fallen Down, 12 Home, 33 Quiet Water
160429 11 Determination, 31 Waterfall, 76 Bergentruckung
160430 14 Heartache, 85 Fallen Down (Reprise)
160501 05 Ruins, 77 ASGORE
160502 51 Another Medium, 68 Death by Glamour
160503 35 Bird That Carries You Over a Disproportionately Small Gap, 48 Alphys
160504 65 CORE
160505 15 sans., 16 Nyeh Heh Heh!, 24 Bonetrousle, 45 NGAHHH!!, 46 Spear of Justice, 49 It's Showtime!, 63 It's Raining Somewhere Else, 83 Here We Are
160506 09 Enemy Approaching, 21 Dogsong, 34 Memory, 43 Temmie Village, 44 Tem Shop, 90 His Theme
160507 87 Hopes and Dreams
160508 88 Burn in Despair!, 89 SAVE the World, 97 But the Earth Refused to Die, 98 Battle Against a True Hero, 99 Power of -NEO-, 100 MEGALOVANIA
160509 10 Ghost Fight, 36 Dummy!, 50 Metal Crusher
160510 03 Your Best Friend, 17 Snowy, 22 Snowdin Town, 23 Shop, 59 Spider Dance
160512 79 Your Best Nightmare, 80 Finale
160514 30 Undyne, 32 Run!, 54 Hotel, 55 Can You Really Call This A Hotel, I Didn't Receive A Mint On My Pillow Or Anything, 57 Live Report, 58 Death Report, 61 Oh! One True Love, 62 Oh! Dungeon, 71 Undertale
160515 26 Dating Tense!
160516 25 Dating Start!, 27 Dating Fight!, 56 Confession, 86 Don't Give Up
160517 81 An Ending
160519 92 Reunited, 94 Respite
160520 84 Amalgam, 91 Final Power
160521 02 Start Menu, 06 Uwa!! So Temperate, 07 Anticipation, 08 Unnecessary Tension, 13 Home (Music Box), 18 Uwa!! So Holiday, 19 Dogbass, 20 Mysterious Place, 28 Premonition, 29 Danger Mystery, 37 Pathetic House, 38 Spooktune, 39 Spookwave, 40 Ghouliday, 41 Chill, 52 Uwa!! So HEATS!!, 93 Menu (Full)
160522 42 Thundersnail, 47 Ooo, 64 CORE Approach, 66 Last Episode!, 67 Oh My..., 69 For the Fans, 73 The Choice, 74 Small Shock, 78 You Idiot, 82 She's Playing Piano, 101 Good Night
160523 70 Long Elevator, 95 Bring It In, Guys!, 96 Last Goodbye
160524 53 Stronger Monsters, 60 Wrong Enemy !?
160525 72 Song That Might Play When You Fight Sans, 75 Barrier


Technical Trivia:

1. As far as I know, no one else has ever attempted to transcribe Flowey's laugh (in Your Best Nightmare), or any other laugh for that matter, for the piano. Those four bars took me as long to arrange as the rest of that song combined.

game over toriel hotland papyrus undyne mettaton true lab battle theme asriel napstablook flowey muffet

Pages 213
Duration 02:16:45
Measures 3402
Key signature 1 flat
Parts 1
Part names Piano
Privacy Everyone can see this score
License Attribution, non-commercial, share alike
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Your comment


Huge respect for Amalgam... hard work !
great but glitchy like the playing speeds up
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the laugh is spot on. Thank you for taking the time to do that because that's freakin awesome.
This glitched out so bad on my phone
ok, i play piano better than undyne but her hand is very big xd
if you flip through the comments really slowly ur gonna see a bunch of orange and black stuff
why does this song have to be only piano dat sad. But, I played everyone's theme backward because I was trolling the music in the real game xDDDD. Also, i put on undyne's theme as i was playing ruins (sped up a lot) and i found ruins as undyne's theme (1 of the parts?) Wait, i also sped pathetic house up... MUFFET R U DERE... omg so many secrets in songs? or slowed down here we are is aactually slowed down alphys song... play SAVE the world backward for final power... OH wait, i played final power backwards and... woa
Maybe Undyne’s side theme is really just the song of the monsters?
Undyne is their hero...
hmm... makes sense, but i think mostly a "hero" for snowdin tho since papyrus and monster kid are from snowdin thats where you first meet them
ok. At temmie village, it says "you feel... something. You're filled with determination." A good update would be this: "h0I! dIS... iS tEMy vILagE! *press [z]* jOiN da tEMy naTioN!" ––
Join or Refuse –––––– Join: save, Refuse: Return
Dang, it's like Ralsei's my alternate twin or something.
is it a he or a she? i think its a she... or an it
ralsei is asriel but the letters swapped so id say its a he or a it
yea ik but at the end when ralsei reveals her/himself, it looks more feminine...
wait, he's a prince.... isnt he?
if hes a girl (uh)
he would be a prince-cess
wait he's probably like mettaton because it looks female but it's mentioned as a "he" just because they look female doesn't mean they are...
People refer to Ralsei as he, but yeah, the lying.
Probably not though
there is a small chance, but most likely it's just mettaton like
Oh wow, I play piano better than undyne
How did he/she get the alarm to play in the background of "Your Best Nightmare"?
You need some kind of medal for this. (/0o0)/
I am going to use this to make a full orchestra Undertale OST remix!
Memory used to be my favorite theme, now it's battle against a true hero.
battle against a true hero used to be my favorite theme, now it's amalgam and song that might play when you fight sans
I thought that nyeh heh heh and bone bone trousle was the same music until about a year ago
If there's a soundtrack called Determination, shouldn't there be a soundtrack called patience, perseverance, kindness, bravery, integrity, or justice?
technically, there is... It's in the your best nightmare (souls), I mean.. I think
The theme called "Determination" is the theme that plays during the Game Over screen(with the exception of Sans dunking you), and only Frisk, the human with the Determination SOUL can Continue/Save, which involves the use of the Game Over screen, as that screen is to show when the player/Frisk dies.
I think all of them are possible to play... I tried some I think is hard on the piano and yeah I could play it, maybe it's the songs I didn't get to yet...
jeez!!! how long is this going to go on for!!? i mean, its amazing!!
probably around 2-3 hours something
It took me a couple weeks to listen to the whole thing. This is really amazing; you did such a good job! (3