A9
A 9th chord
Notes
AC#EGB
Intervals
135b79
Root
A
Voicings on standard tuning
Voicing 1
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·
·
○
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4fr
Voicing 2
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○
·
·
○
○
5fr
Voicing 3
·
·
·
·
○
○
4fr
Voicing 4
·
·
·
·
·
○
4fr
Voicing 5
·
·
·
·
·
·
4fr
Voicing 6
✕
○
·
·
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5fr
About A9
Interval formula
1 – 3 – 5 – ♭7 – 9
Sound character
a dominant 7th with extra grit — funk and blues staple
Where it appears
The funk chord — think James Brown stabs and blues turnarounds.