Get this sheet
PDF sheets + MIDI
Included with Premium
PDF sheets and the MIDI file, included with Premium.
Every song from $4.99 a month · cancel anytime
Practice this song
Free13 short parts, one hand at a time, at your own speed.
On a real piano? It listens and waits for you.
Start practicingUp next
EZPiano
Free for iPhone and iPad
Play His Theme (From Undertale) on your own piano
Plug in your piano by USB or Bluetooth. The song waits for you until you hit the right notes. Slow it down, loop any bars, play one hand at a time.
- 1Get the app. Free on the App Store.
- 2Sign in. Use the same email you unlock songs with.
- 3Connect your keyboard. By USB or Bluetooth, and play along.
Get EZPiano on the App StoreFree. Songs you unlock here open in the app too.
More piano sheets for songs you like
Engraved sheet music from our catalog — instant PDF download.
Converted from YouTube
This sheet was made from Sheet Music Boss’s YouTube piano video, “His Theme (from Undertale) - Piano Tutorial”. Watch it, then keep practicing here.
Do not worry about me… Someone has to take care of these flowers.Open on YouTube
His Theme (From Undertale) by Toby Fox
About “His Theme (From Undertale)”
This medium level song is in the key of Gb at 91 BPM. Uploaded by Lê.
Questions about this song (12)
- What does the sheet music of "His Theme (From Undertale)" show?
- Standard piano notation drawn from this song's own MusicXML: treble and bass staves, the key signature of Gb and every note of both hands, with the bar you are playing marked as it plays.
- What key is "His Theme (From Undertale)" by Toby Fox played in?
- His Theme (From Undertale) is arranged in the key of Gb on Super Simple Piano. You can transpose to any other key live in the player.
- What's the tempo (BPM) of "His Theme (From Undertale)"?
- The arrangement plays at 91 BPM. Use the speed control (10-200%) to practice slower or play faster.
- Is "His Theme (From Undertale)" easy to play on piano?
- This is a medium-difficulty arrangement. Most players can learn it within a few practice sessions using the speed control.
- Can I download sheet music for "His Theme (From Undertale)"?
- Yes — registered users can download PDF sheet music, plus MIDI and MusicXML files for use in other notation software.
- Who composed "His Theme (From Undertale)"?
- "His Theme (From Undertale)" was originally performed by Toby Fox. The Super Simple Piano arrangement is simplified for beginner-to-intermediate players.
- What other songs by Toby Fox can I play here?
- Try "Attack of the Killer Queen (from Deltarune)", "Battle Against a True Hero (from Undertale)", "Bergentrückung + ASGORE (from Undertale)". All are in our player with color-coded notes; pick the one matching your level.
- Is this the same notation a piano teacher would hand me?
- Yes — "His Theme (From Undertale)" is rendered at engraver quality (the Verovio engine, the same toolkit RISM and OpenScore editions use) from the original publisher MusicXML. You get standard piano notation: treble + bass clefs, key signature Gb, time signature, beams, dynamics — everything a printed sheet music book would have. Great for piano students learning to read music properly.
- What's the difference between Sheet Music and the other modes here?
- Sheet Music is the "classic" view — the one your piano teacher uses. Other modes (Beginner, Fall Down, Simple Sheet, Lead Sheet) trade real notation for color-coded notes and falling shapes to help absolute beginners. Use Sheet Music once you're ready to read both hands at once from real notation.
- Can I practice from this view at my own pace?
- Yes — slow the tempo from 91 BPM down (or up) without changing the pitch. The score scrolls in time and the currently playing note is highlighted, so you can drill a tough bar at half speed and bump it up once it feels comfortable.
- Why can I click a note in the score?
- Every notehead is interactive. Click and the audio jumps to that moment so you can drill a specific phrase or bar instead of replaying from the top. The currently playing note is highlighted as the music advances so your eye never loses its place.
- Can I download the sheet music as a PDF?
- Yes — Sheet Music PDF is one of the download formats for this song. The engraved score prints page-perfect on A4 / Letter so you can practice from paper as well as on screen.
Other versions of His Theme (From Undertale)
Other arrangements of His Theme (From Undertale)
Pick a learning view.