This can be for any au you want (Toriel as Undyne only), provided you give credit to original creator of the song. Please ask beforehand.
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Leitmotives (In-order):
-Heartache (Part 1)
-Heartache (Part 2, extended motif to reference the different variations of the original Ruins motif)
-Fallen Down (+ Reprise, modified)

Source of Image: https://www.deviantart.com/it0ki/art/Battle-with-Toriel-609536392

[Storyshift/A Toriel Spear of Justice] Her Highness' Stand

Oh my god, All of this shit is from my fnf phase 🥀
Check out my playlists if ya want
Profile pic by: Me
Banner by: Me

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Age: All you need to know, Is that I’m not an adult yet

Gender: Male

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Games With music I like/ Awesome Games in general: Loz Majoras Mask, Pokémon Red/Blue, Undertale, Deltarune, Fnf, Kirby, Super Mario, Super Smash Bros.
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Likes: Video Games, Music, Video Game Music, Drawing, Manga, Puns, Humor, Reese’s,Nintendo 64, Gameboy, (Old games in general), Hoodies, Blue, And Yellow

Dislikes: Toxicity, Annoying Kids (Hypocritical Statement since I can be annoying at times too), (I’ll add to this when I can think about it)

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Interesting thing about me: I can play piano moderately well!

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I have a YouTube channel…
(I’m sorry, For I have put a shameless plug in my bio)

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Q: Am I able to use your songs/covers for anything?

A: Depends on what it’s for and as long as you notify me and give me proper credit (If they are covers of songs, Be sure to give the creators of them proper credit too!)

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That’s it for my bio dudes/dudettes, See you next time, Thank you for coming to my speedrun of flappy bird!

You still have no idea who I am... Ok some things about me, just a really busy 17 year-old guy who's spontaneously producing au tracks. I take requests ocassionally or when i have more free time. i work on many aus (including someone's au) and several UT fangames. I make roleswap au tracks a lot more than crossover ones. I mostly make death by glamours, battle against a true heroes, heartaches, and asgores because those are my favorites and really fun to make.

And here's my discord: MoonStriker#0730

QnA:

Q: Do you have any AU?
A: Yeah, I have: Rolled Cycle (Swapspin), Last Hope, and Underswitched. "Will I make songs for one of theses aus?" Someday, yeah. 
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Q: Can I use your musics for my au?
A: Sure! If the description of the certain music says that, then yes! I'm wary about Deltarune aus, though.
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Q: Do you have any song project?
A: I consider "Chara and Asriel swap" to be my primary music project. There's more such as "Chaos Kings" and "Doused Flames". Upcoming project might be "Toriel and Asriel Swap" or "Mettaton and Asgore Swap". I'm not sure, but you can decide which one too based on what you're interested with.
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Q: Do you take request?
A: Yes, but that depends or it'll take some time to actually do it.
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Q: What is your favorite UT music?
A: For battle theme: Battle against a True Hero goes to number one! Death by Glamour goes to second! And finally... ASGORE goes to third! Last but not least... Heartache or Spear of Justice? I don't know, both are on-par to me =P As for area theme, Waterfall and Another Medium for the win!

Source of Profile Picture's Image: https://quicksilver26.tumblr.com/post/148474219112/tokonbu-papyrus-and-sans-%E3%83%A1%E3%82%A4%E3%82%AD%E3%83%B3%E3%82%B0%E3%82%82%E3%81%A4%E3%81%91%E3%81%A6%E3%81%BF%E3%81%BE%E3%81%97%E3%81%9F

[Storyshift/A Toriel Spear of Justice] Her Highness' Stand

MoonStrik3r