A Jazz ii–V–I
ii – V – I progression in A major
A Jazz ii–V–I — ii – V – I
The A ii–V–I progression (Bm – E – A) is the most important cadence in jazz. The subdominant provides motion, the dominant creates tension, and the tonic delivers resolution. With seventh chords (Bm7 – E7 – AMaj7), it is the definitive jazz sound.