How do you play the A 9/C# chord?

To play the A 9/C# chord on piano, play the A 9 chord (A, C#, E, G and B) 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 A 9/C# chord means a A 9 chord with C# in the bass.

A 9/C#

Q: What notes are in the A 9/C# chord?

The A 9/C# chord uses the 5 notes of the A 9 chord — A (Perfect unison), C# (Major third), E (Perfect fifth), G (Minor seventh) and B (Major ninth) — with C# played as the bass note in the lowest register.

The A 9 chord consists of the A (Perfect unison), C# (Major third), E (Perfect fifth), G (Minor seventh) and B (Major ninth) notes, with C# as the bass note.

Piano keyboard showing the notes for a A 9/C# chord

How to play the A 9/C# chord

Play C# as the lowest bass note in the left hand
Find A (Root) on the piano keyboard
Add C# (Major third) — 4 semitones above A
Add E (Perfect fifth) — 7 semitones above A
Add G (Minor seventh) — 10 semitones above A
Add B (Major ninth) — 14 semitones above A
Press all 6 notes simultaneously to sound the A 9/C# chord

Related chords with different root

Related slash chords

E m(add11)/C#
A 7(sus2)/C#
A 9(sus2)/C#