C# 7(no3)/A#

The C# 7(no3) chord consists of the C# (Perfect unison) and B (Minor seventh) notes, with A# as the bass note.

Piano keyboard showing the notes for a C# 7(no3)/A# chord

How to play the C# 7(no3)/A# chord

  1. Play A# as the lowest bass note in the left hand
  2. Find C# (Root) on the piano keyboard
  3. Add B (Minor seventh) — 10 semitones above C#
  4. Press all 3 notes simultaneously to sound the C# 7(no3)/A# chord