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Musical analysis below is derived from the recommended version —7 tracks · 1:21
About this song
Once Upon A Time by UNDERTALE is in F major (estimated). This 7-track arrangement runs 1:21 (Harpsichord, Synth bass 1, Lead 2 (sawtooth), Pad 2 (warm), and Drums). 2 versions available to play and practice.
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Chord progressionsestimated
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About the key of F major
F major is the 15th most common key in our catalog. Its three core chords are F, A♯, and C.
More from UNDERTALE
4 versions · D minor · 120 BPM
GuitarBassOtherDrums1 version · F minor · 118 BPM
GuitarBassDrums3 versions · D minor · 114 BPM
BassKeysOtherDrums3 versions · B major · 101 BPM
Guitar1 version · D minor · 121 BPM
GuitarBassOtherDrums4 versions · E minor · 148 BPM
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