Bmaj7 Chord on Piano
Bmaj7 = B – D# – F# – A# (Root, Major 3rd, Perfect 5th, Major 7th)
Of every major seventh chord in this collection, Bmaj7 asks the most of the hand: B, D#, F#, and A#, with only the thumb ever touching a white key. Where B7 keeps its seventh on the white A, Bmaj7 reaches one step further to the black key beside it, A#, tipping the balance to three raised notes out of four. It functions as the Imaj7 in B major, the chord neo-soul and jazz keyboardists reach for when a phrase needs to feel like home without ever fully closing the door on it.
Three fingers commit to black keys simultaneously — D#, F#, and A# — leaving the thumb as the lone white-key anchor on B itself, a genuinely more elevated, compact hand position than any other major seventh built in this natural-and-sharp-root set. What actually creates the glow, though, is nothing exotic: it's the same tight half step every major seventh relies on, here sitting between A# and the octave B. As the Imaj7 in B major it softens that key's tonic, and as the IVmaj7 in F# major it layers extra shimmer onto an already bright, mostly-black subdominant. Because it sits so deep into the sharp keys, Bmaj7 rarely appears in beginner repertoire at all, showing up mostly in advanced jazz voicings and film-score cues that specifically want its unusually elevated, glassy color.
Voicings
Root Position
1st Inversion
How to Practice It
Because three fingers reach for black keys at once, practice this chord more slowly than most other major sevenths, checking that the hand doesn't tighten while holding D#, F#, and A# all in position simultaneously. Contrast it directly against B7 — the seventh alone, A versus A#, is the entire difference between a chord that wants to move and one that's happy to sit exactly where it is. Given how demanding the reach is physically, simply holding the shape steady for several slow breaths is a worthwhile goal in itself before folding it into any real progression.
Common Progressions
- Bmaj7 – G#m7 – C#m7 – F#7, a jazz turnaround built from B major's own diatonic chords
- Bmaj7 – Emaj7 (Imaj7 – IVmaj7), two chords that glow without resolving into each other
- Emaj7 – Bmaj7, the tonic approached from its subdominant neighbor instead of the dominant
- Bmaj7 – D#m7 – G#m7 – Emaj7 (Imaj7 – iii7 – vi7 – IVmaj7), a walk through B major's softer chords
- C#m7 – F#7 – Bmaj7 (ii7 – V7 – Imaj7), a jazz cadence landing on a hazier major-seventh tonic
FAQ
- Why is Bmaj7 the most physically demanding major seventh in this set?
- Three of its four notes — D#, F#, and A# — are black keys, leaving only the thumb on white B, a more elevated and compact hand position than any other major seventh chord here.
- What note does B7 use instead of Bmaj7's A#?
- B7 uses A, a white key, creating a restless pull toward resolution, while Bmaj7's A# sits a gentle half step from the octave, producing a glow with no urge to move.
- How does Bmaj7 function outside its own key?
- As the IVmaj7 in F# major, it adds extra shimmer to a subdominant that's already built mostly from black keys.
- Why is Bmaj7 rare in beginner repertoire?
- Its five-sharp key signature and demanding three-black-key reach place it deep into advanced territory, so it mostly shows up in jazz voicings and film cues that specifically want its unusually elevated, glassy color.
- How many black keys does Bmaj7 need compared to B7?
- One more — B7 uses the same two black keys as plain B major, D# and F#, while Bmaj7 adds a third, A#, since the major seventh above B happens to land on a raised key.
- Does Bmaj7 ever substitute for a plain B triad?
- In jazz and neo-soul contexts, yes, whenever a progression wants a softer, less final-sounding tonic, though its demanding hand shape makes it a less casual substitution than easier major sevenths.
- Is Bmaj7 the most physically demanding chord in this entire collection?
- Among the major seventh qualities covered here, yes — no other maj7 built on a natural or sharp root asks for three black keys out of four notes.
- Does Bmaj7 ever appear in film scoring specifically?
- Occasionally, when a composer wants an unusually elevated, glassy color for a reflective or dreamlike scene, leaning on the chord's rarity as much as its sound.
Bmaj7 on other instruments: Bmaj7 on Guitar, Bmaj7 on Ukulele. Related: how chords are built, chord finder.