Chords of: 『366日』acoustic ver. 優里 × 仲宗根泉（HY） by: 優里ちゃんねる【公式】. (C#, G#, D#, A#m7) are the main chords of the song. The chords are displayed instantly in real-time with a YouTube player, four synced views, instrument diagrams, loop practice and a built-in vocal-remover mixer.
“『366日』acoustic ver. 優里 × 仲宗根泉（HY）” by 優里ちゃんねる【公式】 is in Db Major and runs at about 71 BPM, giving it a slow, laid-back feel. Our analysis found 19 different chords across 191 chord changes; the ones that carry the song are C#, G#, D#, A#m7.
C# is the chord you will hold longest — roughly 14% of the 5:52 the chords were tracked for. The song opens with G#/Eb → Fm → G#/Eb → Fm7 → C# → D# → G# → A#7. Play the timeline above to hear each change land in real time.
Difficulty: advanced — 8 main chords with 11 extended, altered or slash voicings. Guitar tip: put a capo on fret 1 and use C major shapes — the song stays in Db Major but every chord becomes an open chord.
| Chord | Time held | Share |
|---|---|---|
| C# | 0:50 | 14% |
| G# | 0:50 | 14% |
| D# | 0:45 | 13% |
| A#m7 | 0:45 | 13% |
| G#/C | 0:34 | 10% |
| G#/Eb | 0:29 | 8% |
| Fm7 | 0:20 | 6% |
| Fm | 0:19 | 5% |
G#/Eb – Fm – G#/Eb – Fm7 – C# – D# – G# – A#7 – A#m7 – D# – G# – C# – D#m7 – G#7 – C# – G#/C – A#m7 – C# – D# – G#/C – C# – D# – G# – D#/G – Fm7 – A#7 – A#m7 – D# – G#/C – Cm – C# – D#m – G#7 – C# – G#/C – A#m7 – D# – A#m7 – Fm7 – Cm7 – C# – A#m7 – D#m7 – C# – Fm7 – D# – A#m7 – Fm – …
