CHORD LIBRARY

Play along J., chord by chord.

Chords of: J. by: Ivan Cornejo. (Bbmaj7, Bb, A7, Fmaj7) 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 “J.”

“J.” by Ivan Cornejo is in Bb Major and runs at about 155 BPM, giving it a fast, energetic pace. Our analysis found 21 different chords across 98 chord changes; the ones that carry the song are Bbmaj7, Bb, A7, Fmaj7.

Bb is the chord you will hold longest — roughly 25% of the 3:53 the chords were tracked for. The song opens with Fmaj7 → Bb → Fmaj7 → Ebmaj7 → Bb → Dm → A → Bb. Play the timeline above to hear each change land in real time.

Difficulty: advanced — 7 main chords with 6 extended, altered or slash voicings. Guitar tip: put a capo on fret 1 and use A major shapes — the song stays in Bb Major but every chord becomes an open chord.

Chord frequency

ChordTime heldShare
Bb0:5925%
A70:3615%
Fmaj70:3314%
F0:2812%
Bbmaj70:2812%
Bb60:136%
A0:136%
G70:031%

Chord progression, in order

Fmaj7 – Bb – Fmaj7 – Ebmaj7 – Bb – Dm – G/F – A – Bb – F – A – Bb – F – A7 – Bbmaj7 – Bb – F – A7 – Bb – Fmaj7 – Amaj7 – Am – Bbmaj7 – C7 – Fmaj7 – Bb/C – A7 – Bb6 – Bb – Bbmaj7 – F – C – Gm7b5 – A – Caug – Bb6 – Fmaj7 – Bb – A7 – Gm – Bbmaj7 – G7 – A7 – Bb – F – A7 – Bbmaj7 – Fmaj7 – …