How do you play the C# 7(#9)(no5)/A# chord?

To play the C# 7(#9)(no5)/A# chord on piano, play the C# 7(#9)(no5) chord (C#, F, B and E) 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# 7(#9)(no5)/A# chord means a C# 7(#9)(no5) chord with A# in the bass.

C# 7(#9)(no5)/A#

Q: What notes are in the C# 7(#9)(no5)/A# chord?

The C# 7(#9)(no5)/A# chord uses the 4 notes of the C# 7(#9)(no5) chord — C# (Perfect unison), F (Major third), B (Minor seventh) and E (Minor tenth) — with A# played as the bass note in the lowest register.

The C# 7(#9)(no5) chord consists of the C# (Perfect unison), F (Major third), B (Minor seventh) and E (Minor tenth) notes, with A# as the bass note.

Piano keyboard showing the notes for a C# 7(#9)(no5)/A# chord

How to play the C# 7(#9)(no5)/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 B (Minor seventh) — 10 semitones above C#
Add E (Minor tenth) — 15 semitones above C#
Press all 5 notes simultaneously to sound the C# 7(#9)(no5)/A# chord