A#7b9 chord on guitar
A Sharp Dominant Seventh Flat Nine, also written Bb7b9. Notes: A#, D, F, G# and B.
How to play A#7b9
- Put your index finger on the 5th (A) string at fret 1 (A#).
- Put your middle finger on the 3rd (G) string at fret 1 (G#).
- Put your ring finger on the 1st (high E) string at fret 1 (F).
- Let the open D and B strings ring.
- Don't play the low E string: skip it or mute it with a fretting finger.
- Strum from the A string down.
All 4 ways to play A#7b9
Easiest first. Tap play to hear each one.Open position
EasyFret 4 position
EasyBarre at fret 6
HardBarre at fret 12
HardNotes and theory
The 7b9 chord adds a flat ninth to a dominant seventh. It pulls strongly to a minor chord and is common in jazz and flamenco. The formula is 1 3 5 b7 b9. Strictly by music theory the notes are spelled A#, C##, E#, G# and B; C## is the same key as D and E# is the same key as F.
More A# chords
All A# guitar chordsdominant seventh flat nine chords in every key
Questions
What notes are in the A#7b9 chord?
A#7b9 (A sharp dominant seventh flat nine) is made of five notes: A# (root), D (major third), F (perfect fifth), G# (minor seventh) and B (flat ninth).
How do you play A#7b9 on guitar?
The easiest A#7b9 is the "open position" shape. Put your index finger on the 5th (A) string at fret 1 (A#). Put your middle finger on the 3rd (G) string at fret 1 (G#). Put your ring finger on the 1st (high E) string at fret 1 (F).
Is A#7b9 hard to play on guitar?
No. The easiest version is rated easy and uses 3 fretted notes plus open strings.
What does a dominant seventh flat nine chord sound like?
The 7b9 chord adds a flat ninth to a dominant seventh. It pulls strongly to a minor chord and is common in jazz and flamenco.