How do you play the B maj7(#5)/A# chord?

To play the B maj7(#5)/A# chord on piano, play the B maj7(#5) chord (B, D#, G and A#) with A# as the lowest bass note. Place the A# note below the other chord tones. Slash chords specify a particular bass note different from the chord root.

What is a slash chord?

A slash chord (or compound chord) is written as Chord/Bass and specifies both a chord and a bass note. The note to the right of the slash is played as the lowest note. The B maj7(#5)/A# chord means a B maj7(#5) chord with A# in the bass.

B maj7(#5)/A#

Q: What notes are in the B maj7(#5)/A# chord?

The B maj7(#5)/A# chord uses the 4 notes of the B maj7(#5) chord — B (Perfect unison), D# (Major third), G (Minor sixth) and A# (Major seventh) — with A# played as the bass note in the lowest register.

The B maj7(#5) chord consists of the B (Perfect unison), D# (Major third), G (Minor sixth) and A# (Major seventh) notes, with A# as the bass note.

Piano keyboard showing the notes for a B maj7(#5)/A# chord

How to play the B maj7(#5)/A# chord

Play A# as the lowest bass note in the left hand
Find B (Root) on the piano keyboard
Add D# (Major third) — 4 semitones above B
Add G (Minor sixth) — 8 semitones above B
Add A# (Major seventh) — 11 semitones above B
Press all 5 notes simultaneously to sound the B maj7(#5)/A# chord

Related chords with different root

B maj7(#5)

Related slash chords

D# aug/A#
G aug/A#
B aug/A#