CHORD LIBRARY

Play along Octagon, chord by chord.

Chords of: Octagon by: Hamada. (D, Cmaj7, Bbmaj7, D7) 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.

About the chords of “Octagon”

“Octagon” by Hamada is in C Minor and runs at about 194 BPM, giving it a fast, energetic pace. Our analysis found 21 different chords across 52 chord changes; the ones that carry the song are D, Cmaj7, Bbmaj7, D7.

D is the chord you will hold longest — roughly 27% of the 2:35 the chords were tracked for. The song opens with D → D/A → D → Cm → Gm6 → D6 → Gm6 → Bbmaj7. Play the timeline above to hear each change land in real time.

Difficulty: advanced — 9 main chords with 10 extended, altered or slash voicings. Guitar tip: put a capo on fret 3 and use A minor shapes — the song stays in C Minor but every chord becomes an open chord.

Chord frequency

ChordTime heldShare
D0:4227%
Bbmaj70:149%
Cmaj70:138%
D70:107%
Bm0:106%
D60:096%
Am7b5/G0:075%
Gm60:074%

Chord progression, in order

D – D/A – D – Cm – Bbmaj7 – Gm6 – D6 – Gm6 – Bbmaj7 – G6 – D6 – Bm – Dm6 – Dm – A7/C# – Bbmaj7 – D – Am7b5/G – D – Am7b5 – D7 – Cmaj7 – G/D – Dm7 – Cmaj7 – D7 – Am7b5/G – D6 – A7 – D7 – Cmaj7 – Dm7 – C – Am7b5/G – Dm7 – Cm7 – D – A7/C# – Bbmaj7 – D – Am7b5/G – D – Am7b5 – D – Gm – D – Gm – Dm – …