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

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

E sus4(b5)/C#

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

The E sus4(b5)/C# chord uses the 3 notes of the E sus4(b5) chord — E (Perfect unison), A (Perfect fourth) and A# (Diminished fifth) — with C# played as the bass note in the lowest register.

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

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

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

Play C# as the lowest bass note in the left hand
Find E (Root) on the piano keyboard
Add A (Perfect fourth) — 5 semitones above E
Add A# (Diminished fifth) — 6 semitones above E
Press all 4 notes simultaneously to sound the E sus4(b5)/C# chord

Related chords with different root

A addb9
A# m(maj7)(b5)

Related slash chords

A# maj7(b5)(sus)/C#