Chord sequence

Cm7, F7, Bbm7, Eb7

Cm7 F7 B♭m7 E♭7

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

Cm7
F7
Bbm7
Eb7

Analysis

Heard in Ab major

Each chord's roman numeral and role in Ab major
Chord	Numeral	Role
Cm7	iii7	Diatonic
F7	V7/ii	Secondary dominant of ii
B♭m7	ii7	Subdominant
E♭7	V7	Dominant

Progressions in these changes

All the chords

Major iii-VI-ii-V Progression in Ab

The I-VI-ii-V turnaround with iii, which shares three notes with the I chord, standing in for the tonic.

Scales to play