This is where some older songs from  Undertale: The Otherground's pre-boot (specifically from Demolitale: The Otherground when that was relevant), as well as some tracks from UTTO's own development.

Music artists in this playlist:
Ethan Harper: www.youtube.com/channel/UCwCKk_-e-xBIw79fdtarjdQ
TheRadGuy: https://soundcloud.com/user-277708053

UTTO's Gamejolt: https://gamejolt.com/games/UT_Otherground_Game_poody-Harper/255490
UTTO's Discord: https://discord.gg/qTfFpQX

UTTO Scrapped & Unused OST | Undertale Fangame

mk28

Playlist 1

Shogo Nomura Piano Works Collectionより
ジャケはLaiさん（ https://twitter.com/lai_rr ）に描いていただきました。

ひとりぼっちのプラネタリウム

It should be a longer version until a friend of mine told me to make another OBC together. So I finished the last part very quickly.
I got lots of inspiration from DYS's version and it may sound a little familiar if you heared that version before.
[Edit 1] :
5000 plays and 300 likes...?!
You guys deserved the FLP:  https://mega.nz/file/xQ8i3bgC#gxQRwCHDUcq-MKtNwkgP-K8EckIEoCH9azofshfOQLE
Thank you.
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Credits:
The original song by BDV
Amazing thumbnail by @luigifan54321

[Fallen Stars] Our Broken Constellations (+FLP)

"Mercy? Oh ho ho...that I can't do."
"Shocking, I know. Since I can practically do everything."
"Unfortunately for you, I can't provide any mercy.
"KILLING is my business."

Composers: Master of Toast

Fallen Stars OST - Killing Is My Business

Fallen Stars OST - Enemy Approaching

✋ ✌💣 ☟✋👎👎☜☠ 🕈✋❄☟ ❄☟✋💧 🕈⚐☼☹👎. ✋ ✌💣 ⚐💣☠✋🏱☼☜💧☜☠❄. ✋ ✌💣 ✌☹🕈✌✡💧 ☟☜☼☜. ✡☜❄ 💧⚐ ☞✌☼ ✌🕈✌✡. ✡⚐🕆 🕈✋☹☹ ☠☜✞☜☼ ☞✌👍☜ 💣☜📪 👌🕆❄ ✋📪 🕈✋☹☹ ✌☹🕈✌✡💧📪 ☞✌👍☜ ✡⚐🕆.

He Will Always Face You

"The air's so hot and humid you feel heavy. . . Try not to die of heatstroke! That'd be really funny if you did."

UTTO's main motif written by Ethan Harper
Song written by Ethan Harper
Art drawn by poody_blue, Ethan Harper, & Blaize.Mayes; animated by poody_blue

Gamejolt: gamejolt.com/games/UT_Othergrou…oody-Harper/255490
Discord: discord.gg/qTfFpQX

Undertale: The Otherground Scrapped OST | "Jungle of Ashes", by Ethan Harper

Our first official song that wasn't by Ethan Harper! It's an incredible song, too, especially for battles! Updated several times before being replaced by a simpler song to better fit the vibe of a common encounter.

UTTO's main motif written by Ethan Harper
Song written by TheRadGuy
Art drawn by poody_blue, Ethan Harper, & Blaize.Mayes; animated by poody_blue

Gamejolt: gamejolt.com/games/UT_Othergrou…oody-Harper/255490
Discord: discord.gg/qTfFpQX

Undertale: The Otherground Scrapped OST | "Toe, to Toe, Let's Go!", by TheRadGuy

A scrapped track tossed due to its similarity with the field of hopes and dreams, which the area itself outgrew as it was further fleshed out.
Still a good song to listen to, though!

UTTO's main motif written by Ethan Harper
Song written by TheRadGuy
Art drawn by poody_blue, Ethan Harper, & Blaize.Mayes; animated by poody_blue

Gamejolt: https://gamejolt.com/games/UT_Otherground_Game_poody-Harper/255490
Discord: https://discord.gg/qTfFpQX

Undertale: The Otherground Scrapped OST | "Tear-Stained Heights" (Beta), by TheRadGuy

No quotes with this one. We just forgot this existed, and since it was scrapped due to being a part of the Jungle of Ashes, namely its sub-theme, I figured it would be a nice listen to those thinking about what could have been. Hope you enjoy!

UTTO's main motif written by Ethan Harper
Song written by Ethan Harper
Art drawn by poody_blue, Ethan Harper, & Blaize.Mayes; animated by poody_blue

Gamejolt: gamejolt.com/games/UT_Othergrou…oody-Harper/255490
Discord: discord.gg/3GYK5rZ

Undertale: The Otherground Scrapped OST | "Temple of Ashes", by Ethan Harper

An entirely different song for common encounters made again by TRG. :^)
This one's a lot nicer in that it's more original, simpler, and fits the role of a common encounter much better. Hope you enjoy!
I'm personally a believer of the "Enemy Approaching is Frisk's theme" theory, so you can expect me to feel the same about this song & Louis, even if it's not outright confirmed for canonical consistency between UT & UTTO. 

UTTO's main motif written by Ethan Harper (Not used here)
Song written by TheRadGuy
Art drawn by poody_blue, Ethan Harper, & Blaize.Mayes; animated by poody_blue

Gamejolt: gamejolt.com/games/UT_Othergrou…oody-Harper/255490
Discord: https://discord.gg/qTfFpQX

Undertale: The Otherground OST | "Rough n' Tumble Rumble", by TheRadGuy

*It’s about time you learn something important about this place. 
*Let's pretend for a moment; this doll is a MONSTER.
*I want you to FIGHT it.
*Attack it, before it has a chance to attack you.

UTTO's main motif written by Ethan Harper (Not used here)
Song written by TheRadGuy
Art drawn by poody_blue, Ethan Harper, & Blaize.Mayes; animated by poody_blue

Gamejolt: gamejolt.com/games/UT_Othergrou…oody-Harper/255490
Discord: discord.gg/qTfFpQX

Undertale: The Otherground OST | "Being Prepared", by TheRadGuy

Oops! This is a re-upload. I accidentally deleted it from the roster while cleaning out all the unused versions of this song. Sorry for the inconvenience!

UTTO's main motif written by Ethan Harper
Song written by TheRadGuy
Art drawn by poody_blue, Ethan Harper, & Blaize.Mayes; animated by poody_blue

Gamejolt: gamejolt.com/games/UT_Othergrou…oody-Harper/255490
Discord: discord.gg/qTfFpQX

Undertale: The Otherground OST | "Vessel's Virus", by TheRadGuy

I was scrounging around some files for the game and found an old completed theme for area 1 before it was changed!

UTTO's main motif written by Ethan Harper
Song written by Ethan Harper
Art drawn by poody_blue, Ethan Harper, & Blaize.Mayes; animated by poody_blue

Gamejolt: gamejolt.com/games/UT_Othergrou…oody-Harper/255490
Discord: discord.gg/qTfFpQX

Undertale: The Otherground Scrapped OST | "The Fallen Forest", by Ethan Harper

The original pre-boot version of "Maelstrom". The queen was a vastly different person than she is in today's development, so the tone is also very different- more confident and less sinister, almost prideful in a way.
We're very excited for you to one day meet her in the final game.

UTTO's main motif written by Ethan Harper (it's pretty close, but not used here)
Art drawn by poody_blue, Ethan Harper, & Blaize.Mayes; animated by poody_blue

Gamejolt: gamejolt.com/games/UT_Othergrou…oody-Harper/255490
Discord: discord.gg/qTfFpQX

Undertale: The Otherground Scrapped OST | "Storm Maker", by Ethan Harper

This track was actually a potential candidate for the canon normal mode battle theme at one point, as Rad makes a lot of songs just for fun with this and Rough n' Tumble being two of them. However, the song titled "battle" became Rough n' Tumble while this one fell behind and was forgotten. Now, it lives on as a bonus track and was given its own name as a result.
It may even return in hard mode as the encounter theme for that side of the game if that comes to fruition!

UTTO's main motif written by Ethan Harper (Not used here)
Song written by TheRadGuy
Art drawn by poody_blue, Ethan Harper, & Blaize.Mayes; animated by poody_blue

Gamejolt: gamejolt.com/games/UT_Othergrou…oody-Harper/255490
Discord: discord.gg/qTfFpQX

Undertale: The Otherground BONUS TRACK | "A Soul-Crushing Spat", by TheRadGuy

The official Soundcloud page of Undertale: The Otherground.

Channel operated & maintained by poody_blue, the director.
Channel icon by poody_blue, Ethan Harper, and Blaize.Mayes- animated by poody_blue.
Channel banner by Cactusfries.