Chord sequence
Am7♭5 D7 Gm7 G♭7 Fmaj7
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 F major
Chords 1 to 3
Am7b5 D7 Gm7
Chords 3 to 5
Gm7 Gb7 Fmaj7
Over Am7b5 · iiø7/ii
Mode 7 of Major
Over D7 · V7/ii
Mode 5 of Melodic Minor
Over Gm7 · ii7
Mode 2 of Major
Over Gb7 · subV7
Mode 4 of Melodic Minor
Over Fmaj7 · Imaj7
The major scale and its modes are the most commonly used scales in western music.