A#9b5 chord on guitar
A Sharp Dominant Ninth Flat Five, also written Bb9b5. Notes: A#, D, E, G# and C.
How to play A#9b5
- 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 2nd (B) string at fret 1 (C).
- Let the open D and high E 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#9b5
Easiest first. Tap play to hear each one.Open position
EasyFret 4 position
MediumBarre at fret 5
HardFret 12 position
HardNotes and theory
The 9b5 is a dominant ninth with a lowered fifth, a jazz chord with a lot of tension. The formula is 1 3 b5 b7 9. Strictly by music theory the notes are spelled A#, C##, E, G# and B#; C## is the same key as D and B# is the same key as C.
More A# chords
All A# guitar chordsdominant ninth flat five chords in every key
Questions
What notes are in the A#9b5 chord?
A#9b5 (A sharp dominant ninth flat five) is made of five notes: A# (root), D (major third), E (diminished fifth), G# (minor seventh) and C (ninth).
How do you play A#9b5 on guitar?
The easiest A#9b5 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 2nd (B) string at fret 1 (C).
Is A#9b5 hard to play on guitar?
No. The easiest version is rated easy and uses 3 fretted notes plus open strings.
What does a dominant ninth flat five chord sound like?
The 9b5 is a dominant ninth with a lowered fifth, a jazz chord with a lot of tension.