The B Major chord is a three-note chord made up of B, D♯, and F♯. It is built from a root, major third, and perfect fifth.
Construction
| Note | Interval | Degree |
|---|---|---|
| B | Root | 1 |
| D♯ | Major 3rd | 3 |
| F♯ | Perfect 5th | 5 |
How to Play the B Major
Right Hand (RH)
Place your right hand over the keys with the thumb on the root. Use the fingering: 1 – 3 – 5
Left Hand (LH)
For the left hand, start with your pinky on the root. Use the fingering: 5 – 3 – 1
B Major Inversions
| Position | Notes |
|---|---|
| Root Position | B – D♯ – F♯ |
| 1st Inversion | D♯ – F♯ – B |
| 2nd Inversion | F♯ – B – D♯ |
Key Signature
A chord has no key signature of its own, but the B Major is the tonic (I) chord of B Major, whose key signature has 5 sharps (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.
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:
How B Major functions in a key
The same chord takes on a different harmonic role depending on the key it appears in. Here is where B Major sits diatonically across the common keys:
- In B major, B Major is the I chord — the tonic.
- In D♯ minor, B Major is the VI chord — the tonic.
- In E major, B Major is the V chord — the dominant.
- In F♯ major, B Major is the IV chord — a predominant.
- In C♯ minor, B Major is the ♭VII chord — a mediant / color chord.
- In G♯ minor, B Major is the III chord — a mediant / color chord.
Common B Major Progressions
Pick a progression and press play. Change the key to hear it anywhere — every chord is built from the same theory as the chord pages, so the notes always agree.
The most fundamental major progression — the I, IV and V chords. The backbone of countless folk, country, blues and rock songs.