Chords of: Sekaisin by: Costee. (Bbm7, F#m7, A, D) 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.
“Sekaisin” by Costee is in D Major and runs at about 150 BPM, giving it a fast, energetic pace. Our analysis found 23 different chords across 73 chord changes; the ones that carry the song are Bbm7, F#m7, A, D.
F#m7 is the chord you will hold longest — roughly 31% of the 2:44 the chords were tracked for. The song opens with F#m7 → Dmaj7 → A → F#m7 → A → F#m7 → A → E. Play the timeline above to hear each change land in real time.
Difficulty: advanced — 6 main chords with 4 extended, altered or slash voicings. Guitarists can play it as written — D Major sits in open-chord territory, no capo needed.
| Chord | Time held | Share |
|---|---|---|
| F#m7 | 0:51 | 31% |
| A | 0:29 | 17% |
| D | 0:20 | 12% |
| F#m | 0:15 | 9% |
| E | 0:13 | 8% |
| Dmaj7 | 0:13 | 8% |
| C#7/E# | 0:05 | 3% |
| C# | 0:04 | 2% |
F#m7 – Dmaj7 – A – F#m7 – A – F#m7 – A – E – Fdim – Dm – C#7/E# – F#m – Ab/Gb – D – A – E – C#7/E# – F#m7 – D – C#m – F#m7 – Dmaj7 – A – F# – B/F# – F#m – B – F#m7 – Bm – E6 – Dmaj7 – A – F#m – A – E – Fdim – Dm – C#7/E# – F#m – C#m – D – E7/G# – A – E – C#7/E# – F#m7 – D – Dmaj7 – …
