Banjo · Level 10 · Expert

Rhythm changes (A section) on Banjo

I–vi–ii–V–iii–VI7–ii–V in all 12 keys.

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THE SHORT ANSWER

Rhythm changes is the second most important jazz form after the blues. The A section packs two chords into every bar at a lively tempo.

Choose a key

Listen first: C major

Cmaj7

C major seventh

Notes: C · E · G · B

gDGBD

Am7

A minor seventh

Notes: A · C · E · G

gDGBD

Dm7

D minor seventh

Notes: D · F · A · C

×gDGBD

G7

G dominant seventh

Notes: G · B · D · F

gDGBD

Em7

E minor seventh

Notes: E · G · B · D

gDGBD

A7

A dominant seventh

Notes: A · C♯ · E · G

gDGBD♯

C7

C dominant seventh

Notes: C · E · G · B♭

gDGBD♭

Fmaj7

F major seventh

Notes: F · A · C · E

×gDGBD

Fm7

F minor seventh

Notes: F · A♭ · C · E♭

×gDGBD♭♭
1
Cmaj7Am7
2
Dm7G7
3
Em7A7
4
Dm7G7
5
Cmaj7C7
6
Fmaj7Fm7
7
Em7A7
8
Dm7G7

Why it works

Bar five's I7 is a secondary dominant of IV, and bar six borrows the minor iv from the parallel minor.

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