Chord sequence
Gm7 C7 G♭m7 B7 A♭m7 D♭7 E♭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 Eb major
Chords 1 to 2
Gm7 C7
Chords 3 to 4
Gbm7 B7
Chords 5 to 7
Abm7 Db7 Ebmaj7
Over Gm7 · iii7
Mode 6 of Major
Over C7 · V7/ii
Mode 6 of Blues
Over Gbm7 · ♭iii7
Mode 2 of Major
Over B7 · ♭VI7
Mode 4 of Melodic Minor
Over Abm7 · iv7
Over Db7 · ♭VII7
Over Ebmaj7 · Imaj7
The major scale and its modes are the most commonly used scales in western music.