Construction
B Major 7♭5 = Root + Major 3rd + Diminished 5th + Major 7th = B, D♯, F, A♯
| Note | Interval | Degree |
|---|---|---|
| B | Root | 1 |
| D♯ | Major 3rd | 3 |
| F | Diminished 5th | ♭5 |
| A♯ | Major 7th | 7 |
Fingering
| Note | Key color | Right hand | Left hand |
|---|---|---|---|
| B | white | thumb (1) | little finger (5) |
| D♯ | black | index finger (2) | middle finger (3) |
| F | white | middle finger (3) | index finger (2) |
| A♯ | black | little finger (5) | thumb (1) |
Right hand: thumb (1) on B, index finger (2) on D♯, middle finger (3) on F, little finger (5) on A♯.
Left hand: little finger (5) on B, middle finger (3) on D♯, index finger (2) on F, thumb (1) on A♯.
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 B Major:
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.