Chords of: O'Sistem by: El Chapo Junior, DJ Princex. (Bmaj7, Abm, Bb7/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.
“O'Sistem” by El Chapo Junior, DJ Princex is in Ab Minor and runs at about 121 BPM, giving it an upbeat, driving pulse. Our analysis found 14 different chords across 66 chord changes; the ones that carry the song are Bmaj7, Abm, Bb7/D.
Bmaj7 is the chord you will hold longest — roughly 64% of the 1:51 the chords were tracked for. The song opens with Bmaj7 → Abm → Bmaj7 → Bb7/D → Bmaj7 → Abm → Bmaj7 → Abm. Play the timeline above to hear each change land in real time.
Difficulty: advanced — 4 main chords with 5 extended, altered or slash voicings. Guitar tip: put a capo on fret 4 and use E minor shapes — the song stays in Ab Minor but every chord becomes an open chord.
| Chord | Time held | Share |
|---|---|---|
| Bmaj7 | 1:11 | 64% |
| Abm | 0:18 | 16% |
| E6 | 0:06 | 5% |
| Ab | 0:05 | 4% |
| B | 0:02 | 2% |
| Bbm | 0:02 | 2% |
| Bb7/D | 0:02 | 2% |
| Bb | 0:02 | 2% |
Bmaj7 – E6 – B – F#maj7 – Bmaj7 – Bb – Bmaj7 – E6 – B – Bbm – Ab – Bmaj7 – E6 – Bmaj7 – Bbm – Abm – Bmaj7 – Abm – Bmaj7 – Abm – Bb – Abm – E6 – Bmaj7 – Abm – Bmaj7 – Abm – Bmaj7 – Bb7/D – Bmaj7 – E6 – B – Bbm – Ab – Bmaj7 – Ab – Bmaj7 – E6 – Bmaj7 – Ab – Bmaj7 – Abm – Bbm – Ab7/C – Bmaj7 – Ab – Bmaj7 – Ebm7 – …
