How do you play the C# add9/A# chord?

To play the C# add9/A# chord on piano, play the C# add9 chord (C#, F, G# and D#) 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# add9/A# chord means a C# add9 chord with A# in the bass.

C# add9/A#

Q: What notes are in the C# add9/A# chord?

The C# add9/A# chord uses the 4 notes of the C# add9 chord — C# (Perfect unison), F (Major third), G# (Perfect fifth) and D# (Major ninth) — with A# played as the bass note in the lowest register.

The C# add9 chord consists of the C# (Perfect unison), F (Major third), G# (Perfect fifth) and D# (Major ninth) notes, with A# as the bass note.

Piano keyboard showing the notes for a C# add9/A# chord

How to play the C# add9/A# chord

Play A# as the lowest bass note in the left hand
Find C# (Root) on the piano keyboard
Add F (Major third) — 4 semitones above C#
Add G# (Perfect fifth) — 7 semitones above C#
Add D# (Major ninth) — 14 semitones above C#
Press all 5 notes simultaneously to sound the C# add9/A# chord

Related chords with same root

A# m7(add11)

Related chords with different root

C# 6(add9)

Related slash chords

C# add2/A#
F m7(#5)/A#
F m7(alt)/A#