Space plays and stops
- Notes and intervals
- BbM3Dm3FM3A
Bb Major 7, written Bbmaj7, is built from Bb, D, F and A: the root, major 3rd, 5th and major 7th.
Its 3rd and 7th, D and A, are its guide tones: they say what kind of chord it is, so voicings are built around them and the root is often left to the bass.
In the progressions here, Bbmaj7 is the Imaj7 of the Major ii-V-I Progression in Bb, the IVmaj7 of the Minor Plagal Cadence in F, the ♭IIImaj7 of the Tadd Dameron Turnaround in G and the ♭VImaj7 of the Coltrane Changes in D.