Chord sequence

B7, E7, B7, E7, B7, C#m7, F#7, B7, F#7

B7 E7 B7 E7 B7 C♯m7 F♯7 B7 F♯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

B7
E7
B7
E7
B7
C#m7
F#7
B7
F#7

Analysis

Heard in B major

Each chord's roman numeral and role in B major
Chord	Numeral	Role
B7	V7/IV	Secondary dominant of IV
E7	IV7	Blues dominant
B7	V7/IV	Secondary dominant of IV
E7	IV7	Blues dominant
B7	I7	Blues dominant
C♯m7	ii7	Subdominant
F♯7	V7	Dominant
B7	I7	Blues dominant
F♯7	V7	Dominant

Progressions in these changes

All the chords

Blues with ii-V in B

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 B

C#m7 F#7

Scales to play