How do you play the B major/C# chord?

To play the B major/C# chord on piano, play the B major chord (B, D# and F#) with C# as the lowest bass note. Place the C# 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 major/C# chord means a B major chord with C# in the bass.

B major/C#

Q: What notes are in the B major/C# chord?

The B major/C# chord uses the 3 notes of the B major chord — B (Perfect unison), D# (Major third) and F# (Perfect fifth) — with C# played as the bass note in the lowest register.

The B major chord consists of the B (Perfect unison), D# (Major third) and F# (Perfect fifth) notes, with C# as the bass note.

Piano keyboard showing the notes for a B major/C# chord

How to play the B major/C# chord

Play C# 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 F# (Perfect fifth) — 7 semitones above B
Press all 4 notes simultaneously to sound the B major/C# chord

Related chords with different root

D# m7(#5)
D# m7(alt)
B add2
B add9

Related slash chords

D# m(#5)/C#