Construction
B 7♯9 = Root + Major 3rd + Perfect 5th + Minor 7th + Minor 3rd = B, D♯, F♯, A, C♯♯
| Note | Interval | Degree |
|---|---|---|
| B | Root | 1 |
| D♯ | Major 3rd | 3 |
| F♯ | Perfect 5th | 5 |
| A | Minor 7th | ♭7 |
| C♯♯ | Minor 3rd | ♭3 |
How to Play the B 7♯9
Right Hand (RH)
Place your right hand over the keys with the thumb on the root. Use the fingering: 1 – 2 – 3 – 4 – 5
Left Hand (LH)
For the left hand, start with your pinky on the root. Use the fingering: 5 – 4 – 3 – 2 – 1
B 7♯9 : Frequently Asked Questions
What is the B 7♯9 chord on piano?
The B 7♯9 chord contains the notes B – D♯ – F♯ – A – C♯♯. On piano, play these notes together to sound the chord.
What notes are in the B 7♯9 chord?
The B 7♯9 chord (B7♯9) contains 5 notes: B, D#, F#, A, D. Formula: R-M3-P5-m7-A9.
How is B7♯9 used in music?
B7♯9 is used in jazz, fusion, and contemporary music to add harmonic color. It appears as a dominant or tonic chord depending on context.
What is the scale degree formula for B7♯9?
B7♯9 uses scale degrees 1-3-5-b7-#9, giving it its distinctive sound.