Chord sequence

Am7b5, Ab7#11, Gm7, Gb7, Fmaj7

Am7♭5 A♭7♯11 Gm7 G♭7 Fmaj7

Tempo 120 BPM

Rootless Shells Guide tones Rooted shells Rooted Drop 2

Four-note rootless voicings in their two forms, with the 3rd or the 7th on the bottom, played over the root.

Customize each chord

Am7b5
Ab7#11
Gm7
Gb7
Fmaj7

Analysis

Heard in F major

Each chord's roman numeral and role in F major
Chord	Numeral	Role
Am7♭5	?	Outside the key (iiiø7)
A♭7♯11	subV7♯11/ii	Tritone substitute for V7/ii
Gm7	ii7	Subdominant
G♭7	subV7	Tritone substitute for V7
Fmaj7	Imaj7	Tonic

Progressions in these changes

Chords 3 to 5

Tritone Sub ii-V-I Progression in F

Gm7 Gb7 Fmaj7

Scales to play