Chord sequence

Gbm7b5, Cb7b9, Fbmaj7

G♭m7♭5 C♭7♭9 F♭maj7

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

Gbm7b5
Cb7b9
Fbmaj7

Analysis

Heard in Fb major

Each chord's roman numeral and role in Fb major
Chord	Numeral	Role
G♭m7♭5	iiø7	Borrowed from Fb minor
C♭7♭9	V7♭9	Dominant
F♭maj7	Imaj7	Tonic

Progressions in these changes

All the chords

Minor ii-V to Major Progression in Fb

A minor ii-V resolving to a major I: the half-diminished ii and the dominant's b9 darken the approach, then the major tonic brightens it.

Scales to play