A 9th (A9)
ARoot
C♯Maj 3
EPerf 5
Gmin 7
B9
Rich and bluesy. Dominant 7 with added 9th. Common in jazz, blues, and R&B for sophisticated harmony.
03
How to play it
A9
A 9th, Open
- Bass
- A, the root
- Root
- A
- Strings
- A D G B e · open
- ARoot
- C♯M3
- EP5
- Gm7
- B9
Up the neck
6 voicings, same five notesWhy a 9th chord sounds the way it does
A+4 fretsC♯+3 fretsE+3 fretsG+4 fretsB
Stacked from 4 intervals.
04
Where to go next
03
How to play it
A9
A 9th, Open
- Bass
- A, the root
- Root
- A
- Strings
- A D G B e · open
- ARoot
- C♯M3
- EP5
- Gm7
- B9
Up the neck
6 voicings, same five notes04