Chord sequence

C7, F7, C7, F7, C7, Dm7, Db7, C7, Db7

C7 F7 C7 F7 C7 Dm7 D♭7 C7 D♭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

C7
F7
C7
F7
C7
Dm7
Db7
C7
Db7

Analysis

Heard in C major

Each chord's roman numeral and role in C major
Chord	Numeral	Role
C7	V7/IV	Secondary dominant of IV
F7	IV7	Blues dominant
C7	V7/IV	Secondary dominant of IV
F7	IV7	Blues dominant
C7	I7	Blues dominant
Dm7	ii7	Subdominant
D♭7	subV7	Tritone substitute for V7
C7	I7	Blues dominant
D♭7	subV7	Tritone substitute for V7

Scales to play