How do you play the C 11(sus4)/A chord?

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

C 11(sus4)/A

Q: What notes are in the C 11(sus4)/A chord?

The C 11(sus4)/A chord uses the 3 notes of the C 11(sus4) chord — C (Perfect unison), F (Perfect fourth) and A# (Minor seventh) — with A played as the bass note in the lowest register.

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

Piano keyboard showing the notes for a C 11(sus4)/A chord

How to play the C 11(sus4)/A chord

Play A as the lowest bass note in the left hand
Find C (Root) on the piano keyboard
Add F (Perfect fourth) — 5 semitones above C
Add A# (Minor seventh) — 10 semitones above C
Press all 4 notes simultaneously to sound the C 11(sus4)/A chord

Related chords with different root

F add11
A# maj7(sus2)
A# maj9(sus2)

Related slash chords

F sus4/A
A# sus2/A
A# 5(add9)/A