Unused Music Tracks

This is a page containing the many music tracks that are not present in Undertale or its soundtrack.
== Within the game files ==
=== abc_123_a ===
This sound file contains seven text-to-speech voices from the FL Studio speech synthesizer telling the listener not to post the game's secrets online. The odd filename was chosen to force it at the top of an alphabetical file listing and make its presence more obvious considering that all the other .ogg-format music and sound effect files present in the executable are prefixed with either "mus_" or "snd_".
As of Undertale v1.001, this sound file has simply been changed into laughter, presumably because numerous sources have already exploited the secrets of Undertale.
=== mus_smile ===
This track only plays in room_gaster, a room containing the 17th entry related to one of W. D. Gaster's experiments and only accessible through save file editing or debug mode. While it may not seem like there is much to it other than sounding distorted, it can be sped up by 1000% and have its pitch doubled to reveal Muffet's laugh, then reversed and looped. The distortion used here is a stretching method named "e2 speech" in FL Studio, however some effects may have been applied to the original laugh before the stretch. This audio also is featured in Deltarune, where it is shortened, playing when using the cell phone in the Dark World, as well as the Bunker far south of Hometown, albeit slowed down by 666%.
=== grandpasemi ===
This audio file was originally found in the Undertale Demo as "grandpasemi.ogg" and is reminiscent of the intro to "Metal Crusher". As of Undertale v1.001, this audio file has returned as "grandpatemi" in the form of a sound effect and plays when refusing to give Temmie the Temmie Flakes.
Grandpa Semi was a cut character that may have been planned to be the grandfather of Papyrus and Sans as Semi may refer to Semi-serif fonts or the SEMI OCR font. The Undertale Demo also contains evidence suggesting that the phone call that the protagonist receives in Snowdin Forest from Alphys was planned to be used for Grandpa Semi instead.https://tcrf.net/Proto:Undertale#Phone_Call_ID_List
=== mus_kingdescription ===
A regal-sounding variation of "Determination", likely intended to be used for ASGORE's description.
=== Dance of Dog ===
This song plays in an error room containing a dancing Annoying Dog. This error room can be accessed by modifying the SAVE file to load a dogchecked room. The speed of the song is randomly chosen between 95% and 105% of its base speed. It is present on side D of the Fangamer vinyl for DELTARUNE Chapter 2's OST, where it is extended to 2:03 and plays at 100% speed.
=== mus_sigh_of_dog ===
This song plays in an error room containing a sleeping Annoying Dog. This error room can be accessed by corrupting the SAVE file. The speed of the song is randomly chosen between 80% and 100% of its base speed.
=== mus_star ===
This song uses instruments from the SNES game, Star Fox. This is similar to Dogsong, which used instruments from a different SNES game called Mario Paint. This track was intended to play if, during a fight with Madjick, the player stood still against an attack of weakened Chaser Orbs, causing them to eventually turn into healing orbs. This, however, was deemed too difficult to implement due to the CORE's background music looping over the fights therein.Here's what Toby says about "Star," an eerie unused song in the files
=== mus_f_part3 ===
An unused third part of "Your Best Nightmare" which includes the alarm sound effect, although the last part can be heard on the ending of the 3rd and 5th Stages. This part of the track does not actually play and was scrapped in favor of reusing "mus_f_part1", "mus_f_part2", "mus_repeat_1", "mus_repeat_2," and "mus_endnote." This part may have been used in the final part of the fight, when the souls finally rebel against and defeat Flowey. Interestingly, in the OST version, "Your Best Nightmare" repeats the first part at the end.
=== mus_f_finale_1 ===
An unused first part of "Finale". This track is never played, as "mus_f_finale_1_l" plays instead. It is simply a shorter version of the first part of Finale, most likely intended for when the player restarts their game after dying in the 2nd part of the Photoshop Flowey boss battle. "mus_f_finale_1_l" is most likely just "mus_f_finale_1" with the l standing for longer.
=== mus_piano ===
This song is simply "Good Night" in the Undertale Soundtrack and only plays during the ending screen of the Undertale Demo but not in the full version of Undertale.
=== mus_ruinspiano ===
This song is a slower version of "Ruins" with a variation on the melody. It is a slowed down version of the first part of "An Ending". While separate files for the second and third parts also exist, they are used and have no changes in speed.
== Outside the game files ==
=== Alphys Lab (Unused) ===
An early version of Alphys's Lab that was left unfinished since it sounded too similar to a lab song from another game. It was replaced with "Alphys" in the final version.
=== Undyne Battle (Unused) ===
An early version of Undyne's battle theme before her personality was fleshed out. It was replaced with "Spear of Justice" since it didn't feel like "being heroically punched in the face."
=== Dog Hole (Unused) ===
An unused track which was scrapped during development and was later uploaded to the official Tumblr.
=== Dogtroid (Unused) ===
Allegedly, this track would have played upon beating the game fast enough. Once this happened, the Annoying Dog would appear in a bikini, which is a reference to the Metroid series.
=== Undertale (Unused) ===
An unused iteration of "Undertale" which was said to be more melancholic and less effective. This iteration was scrapped when "Redline Day" from the anime film, Redline inspired Toby Fox to change the chords and guitar accompaniment, which would then serve as the basis for "Memory".
=== Patient ===
Patient was an unfinished song for Homestuck that used the "Doctor" leitmotif. The song would later be reworked as "Another Medium" for Undertale.
== References ==
== External Links ==
* Undertale on The Cutting Room Floor
de:Nicht verwendete Musikstücke
es:Pistas de música no usadas
fr:Musiques non-utilisées
pl:Nieużyte Utwory
pt-br:Trilhas Sonoras Não Utilizadas
ru:Неиспользуемые музыкальные треки
zh:未使用的音軌