B7#9 chord on piano

B Dominant Seventh Sharp Nine. Notes: B, D#, F#, A and D.

B7#9 piano chord, root positionBC4AC5DD#F#
Root position. Tap any key to hear it.

How to play B7#9

  1. Find B just below middle C. That is the root.
  2. Add D#, F#, A and D above it, skipping the keys in between.
  3. 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

Broot
D#3 · major third
F#5 · perfect fifth
Ab7 · minor seventh
D#9 · sharp ninth

Notes and theory

Broot
D#3 · major third
F#5 · perfect fifth
Ab7 · minor seventh
D#9 · sharp ninth

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 B, D#, F#, A and C##; C## is the same key as D.

More B chords

All B piano chords

dominant seventh sharp nine chords in every key

Questions

What notes are in the B7#9 chord?

B7#9 (B dominant seventh sharp nine) is made of five notes: B (root), D# (major third), F# (perfect fifth), A (minor seventh) and D (sharp ninth).

How do you play B7#9 on piano?

Play B, D#, F#, A and D 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.