Chord sequence
F7 B♭7 F7 B♭7 F7 Gm7 C7 F7 Gm7 C7
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 6 to 7
Gm7 C7
Chords 9 to 10
Over F7 · V7/IV
Mode 5 of Major
Over Bb7 · IV7
Mode 4 of Melodic Minor
Over F7 · I7
Over Gm7 · ii7
Mode 2 of Major
Over C7 · V7