Chord sequence

Gm7, Ab7, Dbmaj7, E7, Amaj7, C7, Fmaj7

Gm7 A♭7 D♭maj7 E7 Amaj7 C7 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

Gm7
Ab7
Dbmaj7
E7
Amaj7
C7
Fmaj7

Analysis

Heard in F major

Each chord's roman numeral and role in F major
Chord	Numeral	Role
Gm7	ii7	Subdominant
A♭7	V7/♭VI	Secondary dominant of bVI
D♭maj7	♭VImaj7	Borrowed from F minor
E7	V7/III	Secondary dominant of III
Amaj7	?	Outside the key (IIImaj7)
C7	V7	Dominant
Fmaj7	Imaj7	Tonic

Progressions in these changes

All the chords

Coltrane Changes in F

John Coltrane's substitution for a ii-V-I: the music passes through three keys a major third apart, I, bVI and III, each reached by its own dominant, before arriving home.

Scales to play