B major seventh
How to play Bmaj7 — Major seventh
Bmaj7 (Major seventh)B · D♯ · F♯ · A♯
Piano samples: Salamander Grand Piano (CC-BY 3.0)
B major seventh — notes and structure
The Bmaj7 chord is a major triad with a major seventh — smooth, warm and jazzy.
The Bmaj7 major seventh consists of the notes B, D♯, F♯, A♯. Its interval structure is R–3–5–7 — the root, then each chord tone stacked above it. This is the same chord you see in the interactive finder above, drawn on the piano keyboard with the root circled and every chord tone labelled.
Bmaj7 stacks a major third (D♯), a perfect fifth (F♯) and a major seventh (A♯) above the root B.
To play Bmaj7, press the keys B, D♯, F♯, A♯ together — the root B is circled on the interactive keyboard above.
What key is Bmaj7 in?
Every note of Bmaj7 belongs to the scales below, so the chord sounds at home in each of these keys — the roman numeral is the degree it sits on.
- B major — the I chord
- F♯ major — the IV chord
- G♯ minor — the III chord
- D♯ minor — the VI chord
Chords that go with Bmaj7
In B major, the chords built on the first, fourth and fifth degrees carry most songs — put Bmaj7 next to these:
Frequently asked questions
- What notes are in the B major seventh chord on piano?
- The Bmaj7 chord is made of the notes B, D♯, F♯, A♯. It is a major triad with a major seventh — smooth, warm and jazzy.
- How do you play B major seventh on the piano?
- Press B, D♯, F♯, A♯ at the same time, with the root B as the lowest note. The interactive keyboard above lights up the exact keys.
- What is the major seventh chord formula?
- Its interval structure is R–3–5–7 above the root — the same shape transposed to any of the twelve keys.
- What key does Bmaj7 belong to?
- Bmaj7 fits B major (where it is the I chord), F♯ major (where it is the IV chord), G♯ minor (where it is the III chord) — every note of the chord is in those scales.