(MED. SWING ♩=80)
27

Jazz Piano · Blues Comp Styles

Blues Block Chords

RH four-way close on every beat, LH bass, twelve keys

Block chords (four-way close) put the four chord tones — 1, 3, 5, ♭7 — in close position in the RH, struck on every beat. The LH plays the bass note as a held whole note. Erroll Garner's strummed LH quarters are the closest model (George Shearing's famous locked-hands version is a different texture — it harmonises a moving melody and doubles it in the LH); the sound is everywhere in 1950s cocktail-jazz piano.

Applied to the blues form, block chords produce a strong, even rhythmic pulse with full four-note harmony on every beat. Less subtle than rootless voicings but more emphatic. Easy to learn, powerful for sustained shouts at the end of a chorus.

RH

1-3-5-♭7 in close position, struck on every beat

Form

I⁷ IV⁷ I⁷ I⁷ | IV⁷ IV⁷ I⁷ I⁷ | V⁷ IV⁷ I⁷ V⁷

01

F blues

C 7 3 2 4 1 O O 1 3 1 2 1 1 F 7 1 3 1 2 1 1 F 7 3 2 4 1 O O C 7 1 2 1 3 1 X B 7 1 3 1 2 1 1 F 7 1 3 1 2 1 1 F 7 1 3 1 2 1 1 F 7 1 3 1 2 1 1 F 7 1 2 1 3 1 X B 7 1 2 1 3 1 X B 7 B 7 1 2 1 3 1 X
02

B♭ blues

1 3 1 2 1 1 F 7 1 2 1 3 1 X B 7 1 2 1 3 1 X B 7 1 3 1 2 1 1 F 7 1 3 2 4 X X E 7 1 2 1 3 1 X B 7 1 2 1 3 1 X B 7 1 2 1 3 1 X B 7 1 2 1 3 1 X B 7 1 3 2 4 X X E 7 1 3 2 4 X X E 7 1 3 2 4 X X E 7
03

E♭ blues

1 2 1 3 1 X B 7 1 3 2 4 X X 1 3 2 4 X X E 7 1 2 1 3 1 X B 7 1 3 1 2 1 1 4fr A 7 E 7 1 3 2 4 X X E 7 1 3 2 4 X X E 7 1 3 2 4 X X E 7 1 3 2 4 X X E 7 1 3 1 2 1 1 4fr A 7 1 3 1 2 1 1 4fr A 7 1 3 1 2 1 1 4fr A 7
04

A♭ blues

1 3 2 4 X X E 7 1 3 1 2 1 1 4fr A 7 1 3 1 2 1 1 4fr A 7 E 7 1 3 2 4 X X 2 3 1 4 X X D 7 1 3 1 2 1 1 4fr A 7 1 3 1 2 1 1 4fr A 7 1 3 1 2 1 1 4fr A 7 1 3 1 2 1 1 4fr A 7 2 3 1 4 X X D 7 2 3 1 4 X X D 7 2 3 1 4 X X D 7
05

D♭ blues

1 3 1 2 1 1 4fr A 7 2 3 1 4 X X 2 3 1 4 X X D 7 1 3 1 2 1 1 4fr A 7 1 3 1 2 1 1 G 7 D 7 2 3 1 4 X X D 7 2 3 1 4 X X D 7 2 3 1 4 X X D 7 2 3 1 4 X X D 7 1 3 1 2 1 1 G 7 1 3 1 2 1 1 G 7 1 3 1 2 1 1 G 7
06

G♭ blues

2 3 1 4 X X D 7 1 3 1 2 1 1 1 3 1 2 1 1 G 7 2 3 1 4 X X D 7 X X 5fr C 7 G 7 1 3 1 2 1 1 G 7 1 3 1 2 1 1 G 7 1 3 1 2 1 1 G 7 1 3 1 2 1 1 G 7 X X 5fr C 7 X X 5fr C 7 C 7 X X 5fr
07

B blues

1 3 1 2 1 1 F 7 2 1 3 4 X O B 7 1 3 1 2 1 1 F 7 2 1 O O O O E 7 B 7 2 1 3 4 X O 2 1 3 4 X O B 7 2 1 3 4 X O B 7 B 7 2 1 3 4 X O B 7 2 1 O O O O E 7 2 1 O O O O E 7 2 1 3 4 X O 2 1 O O O O E 7
08

E blues

B 7 2 1 3 4 X O E 7 2 1 O O O O 2 1 O O O O E 7 B 7 2 1 3 4 X O 1 3 X O O O A 7 2 1 O O O O E 7 2 1 O O O O E 7 2 1 O O O O E 7 2 1 O O O O E 7 1 3 X O O O A 7 1 3 X O O O A 7 1 3 X O O O A 7
09

A blues

2 1 O O O O E 7 1 3 X O O O A 7 1 3 X O O O A 7 E 7 2 1 O O O O 2 1 3 X X O D 7 1 3 X O O O A 7 1 3 X O O O A 7 1 3 X O O O A 7 1 3 X O O O A 7 2 1 3 X X O D 7 D 7 2 1 3 X X O 2 1 3 X X O D 7
10

D blues

1 3 X O O O A 7 2 1 3 X X O D 7 2 1 3 X X O D 7 A 7 1 3 X O O O 3 2 1 O O O G 7 2 1 3 X X O D 7 2 1 3 X X O D 7 2 1 3 X X O D 7 2 1 3 X X O D 7 3 2 1 O O O G 7 3 2 1 O O O G 7 G 7 3 2 1 O O O
11

G blues

2 1 3 X X O D 7 3 2 1 O O O G 7 G 7 3 2 1 O O O D 7 2 1 3 X X O 3 2 4 1 O O C 7 3 2 1 O O O G 7 3 2 1 O O O G 7 3 2 1 O O O G 7 3 2 1 O O O G 7 3 2 4 1 O O C 7 3 2 4 1 O O C 7 3 2 4 1 O O C 7
12

C blues

3 2 1 O O O G 7 C 7 3 2 4 1 O O C 7 3 2 1 O O O G 7 1 3 1 2 1 1 F 7 3 2 4 1 O O 3 2 4 1 O O C 7 3 2 4 1 O O C 7 3 2 4 1 O O C 7 3 2 4 1 O O C 7 1 3 1 2 1 1 F 7 1 3 1 2 1 1 F 7 F 7 1 3 1 2 1 1

Four notes, every beat, twelve bars. The shouting voice of swing-era piano.

80 bpm
Sound