A7#9 guitar chord (A Dominant 7th, Sharp 9th)

Symbols: 7#9, 7+9, 7b10

Steps: 1-3-5-b7-#9

Notes: A-C#-E-G-C

The A 7#9 chord sharpens the ninth, creating a powerful and gritty sound. With notes A, C#, E, G and C, this chord is iconic in blues and rock music, often used to evoke a raw, emotional quality. Below, you'll find two variations how to play the "A 7#9" chord, each featuring finger placements and an audio sample.

Variation 1
A7#9 guitar chord - variation 1
  • Barre the 8th fret with your pinky, extending over the 1st to the 2nd strings
  • Use your middle finger to press the G (3rd) string down on the 6th fret
  • Barre the 5th fret with your index finger, extending over the 4th to the 6th strings
  • Place your ring finger on the A (5th) string at the 7th fret and press down
  • Now, strum all the strings

Variation 2
A7#9 guitar chord - variation 2
  • With your pinky, press down on the B (2nd) string at the 13th fret
  • Press the G (3rd) string on the 12th fret with your ring finger
  • Use your index finger to press the D (4th) string down on the 11th fret
  • Place your middle finger on the A (5th) string at the 12th fret and press down
  • Strum from the 5th string to the 2nd strings

Other A Chords

[ Table ]

Other Dominant 7th, Sharp 9th Chords