Chord sequence

Gm7, C7, Fm7, Bb7

Gm7 C7 Fm7 B♭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

Gm7
C7
Fm7
Bb7

Analysis

Heard in Eb major

Each chord's roman numeral and role in Eb major
Chord	Numeral	Role
Gm7	iii7	Diatonic
C7	V7/ii	Secondary dominant of ii
Fm7	ii7	Subdominant
B♭7	V7	Dominant

Progressions in these changes

All the chords

Major iii-VI-ii-V Progression in Eb

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

Scales to play