Chord sequence
Cm7 G7 G♭maj7 E♭7 Dmaj7 B7 B♭maj7
In every key
Four-note rootless voicings in their two forms, with the 3rd or the 7th on the bottom, played over the root.
Heard in Bb major
Over Cm7 · ii7
Mode 2 of Major
Over G7 · subV7/♭VI
Mode 4 of Melodic Minor
Over Gbmaj7 · ♭VImaj7
Mode 4 of Major
Over Eb7 · subV7/III
Over Dmaj7 · ?
The major scale and its modes are the most commonly used scales in western music.
Over B7 · subV7
Over Bbmaj7 · Imaj7