Chord · B Major 7th
Bmaj7 Chord
Bmaj7 is B, D#, F# and A# — dreamy, sophisticated. Tonic of jazz ballads.
Bmaj7 on every instrument
The same 4 notes, 6 sets of hands. Open a diagram for alternate shapes, audio and the mistakes to avoid.
What Bmaj7 is made of
Bmaj7 (B major seventh) is built from the notes B, D#, F#, A#, with the interval pattern 1, 3, 5, 7.
Stack 1, 3, 5 and 7 on a root of B and you get B, D#, F# and A#. That interval recipe is what makes the chord a major seventh chord — move the same shape to another root and the character travels with it, which is why Cmaj7 sounds like a transposed Bmaj7.
Major 7th: Dreamy, sophisticated. Tonic of jazz ballads.
Spelling: the notes above are written the way a score would write them, not simplified to the nearest piano key. That is why this chord is spelled with D♯ rather than its enharmonic equivalent.
Keys that contain Bmaj7
All 4 notes sit inside the scale of 8 keys. The roman numeral marks the degree the chord is rooted on.
Other chords on B
Same root, different colour.
The same major seventh shape, moved
The identical interval recipe, built on other roots.
Questions people ask about Bmaj7
- What notes are in the Bmaj7 chord?
- Bmaj7 is made of B, D#, F# and A# — the 1, 3, 5 and 7 degrees of a major seventh chord built on B.
- What keys use the Bmaj7 chord?
- Every note of Bmaj7 belongs to 8 keys: B Major (I), F# Major (IV), Gb Major (IV), Cb Major (I), G# Minor (III), D# Minor (VI), Eb Minor (VI), Ab Minor (III). The roman numeral is the scale degree the chord is rooted on.
- How do you play Bmaj7 on guitar and piano?
- This page shows Bmaj7 on guitar, piano, ukulele, bass, mandolin and banjo — 11 voicings in total. Each diagram links to the full instrument page with alternate shapes, audio and common mistakes.
Learn the theory behind it
Why Bmaj7 behaves the way it does — the guides that explain the chord instead of just spelling it.