Chord sequence

F7, Bb7, F7, Bb7, F7, C7, Bb7, F7, Gb7

F7 B♭7 F7 B♭7 F7 C7 B♭7 F7 G♭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

F7
Bb7
F7
Bb7
F7
C7
Bb7
F7
Gb7

Analysis

Heard in F major

Each chord's roman numeral and role in F major
Chord	Numeral	Role
F7	V7/IV	Secondary dominant of IV
B♭7	IV7	Blues dominant
F7	V7/IV	Secondary dominant of IV
B♭7	IV7	Blues dominant
F7	I7	Blues dominant
C7	V7	Dominant
B♭7	IV7	Blues dominant
F7	I7	Blues dominant
G♭7	subV7	Tritone substitute for V7

Scales to play