How do you play the B 11(b5)(sus4)/C# chord?

To play the B 11(b5)(sus4)/C# chord on piano, play the B 11(b5)(sus4) chord (B, E, F and A) 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 11(b5)(sus4)/C# chord means a B 11(b5)(sus4) chord with C# in the bass.

B 11(b5)(sus4)/C#

Q: What notes are in the B 11(b5)(sus4)/C# chord?

The B 11(b5)(sus4)/C# chord uses the 4 notes of the B 11(b5)(sus4) chord — B (Perfect unison), E (Perfect fourth), F (Diminished fifth) and A (Minor seventh) — with C# played as the bass note in the lowest register.

The B 11(b5)(sus4) chord consists of the B (Perfect unison), E (Perfect fourth), F (Diminished fifth) and A (Minor seventh) notes, with C# as the bass note.

Piano keyboard showing the notes for a B 11(b5)(sus4)/C# chord

How to play the B 11(b5)(sus4)/C# chord

Play C# as the lowest bass note in the left hand
Find B (Root) on the piano keyboard
Add E (Perfect fourth) — 5 semitones above B
Add F (Diminished fifth) — 6 semitones above B
Add A (Minor seventh) — 10 semitones above B
Press all 5 notes simultaneously to sound the B 11(b5)(sus4)/C# chord

Inversions with same root

C# 7(alt)

Related slash chords

F maj7(b5)/C#