The B Major 7♯5 chord is a four-note chord made up of B, D♯, F♯♯, and A♯.
Construction
B Major 7♯5 = Root + Major 3rd + Minor 6th + Major 7th = B · D♯ · F♯♯ · A♯
| Note | Interval | Degree |
|---|---|---|
| B | Root | 1 |
| D♯ | Major 3rd | 3 |
| F♯♯ | Minor 6th | ♯5 |
| A♯ | Major 7th | 7 |
Key Signature
A chord has no key signature of its own, but the B Major 7♯5 is the tonic (I) chord of B Major, whose key signature has 5 sharps (F♯, C♯, G♯, D♯, A♯).
F♯C♯G♯D♯A♯
Order of sharps
Sharps are added to a key signature in a fixed order. Each new sharp key adds the next sharp on the list.
F♯C♯G♯D♯A♯E♯B♯
Mnemonic: Father Charles Goes Down And Ends Battle
Chords in the Key of B Major
These are the triads built on each degree of the B major scale:
B Major 7♯5 — Frequently Asked Questions
What is the B Major 7♯5 chord on piano?
The B Major 7♯5 chord contains the notes B – D♯ – F♯♯ – A♯. On piano, play these notes together to sound the chord.