A#7#9 chord on piano
A Sharp Dominant Seventh Sharp Nine, also written Bb7#9. Notes: A#, D, F, G# and C#.
How to play A#7#9
- Find A# just below middle C. That is the root.
- Add D, F, G# and C# above it, skipping the keys in between.
- Right hand fingering: 1-2-3-4-5, or split the chord between both hands. Left hand: play the root and fifth, and leave the upper notes to the right hand.
Notes
Notes and theory
The 7#9 has both a major third and a sharp ninth (which sounds like a minor third). It is famous as the Hendrix chord from Purple Haze. The formula is 1 3 5 b7 #9. Strictly by music theory the notes are spelled A#, C##, E#, G# and B##; C## is the same key as D, E# is the same key as F and B## is the same key as C#.
More A# chords
All A# piano chordsdominant seventh sharp nine chords in every key
Questions
What notes are in the A#7#9 chord?
A#7#9 (A sharp dominant seventh sharp nine) is made of five notes: A# (root), D (major third), F (perfect fifth), G# (minor seventh) and C# (sharp ninth).
How do you play A#7#9 on piano?
Play A#, D, F, G# and C# together. With the right hand use fingers 1-2-3-4-5, or split the chord between both hands; with the left hand use play the root and fifth, and leave the upper notes to the right hand.
What does a dominant seventh sharp nine chord sound like?
The 7#9 has both a major third and a sharp ninth (which sounds like a minor third). It is famous as the Hendrix chord from Purple Haze.