Chord sequence

Bb7, Eb7, Bb7, Eb7, Bb7, Cm7, F7, Bb7, F7

B♭7 E♭7 B♭7 E♭7 B♭7 Cm7 F7 B♭7 F7

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

Bb7
Eb7
Bb7
Eb7
Bb7
Cm7
F7
Bb7
F7

Analysis

Heard in Bb major

Each chord's roman numeral and role in Bb major
Chord	Numeral	Role
B♭7	V7/IV	Secondary dominant of IV
E♭7	IV7	Blues dominant
B♭7	V7/IV	Secondary dominant of IV
E♭7	IV7	Blues dominant
B♭7	I7	Blues dominant
Cm7	ii7	Subdominant
F7	V7	Dominant
B♭7	I7	Blues dominant
F7	V7	Dominant

Progressions in these changes

All the chords

Blues with ii-V in Bb

The basic blues with a ii-V in bars 9 and 10 in place of V-IV, and a V7 turnaround in the last bar.
Chords 6 to 7

Major ii-V Progression in Bb

Cm7 F7

Scales to play