C m(maj7)(b5)/A#

The C m(maj7)(b5) chord consists of the C (Perfect unison), D# (Minor third), F# (Diminished fifth) and B (Major seventh) notes, with A# as the bass note.

Piano keyboard showing the notes for a C m(maj7)(b5)/A# chord

How to play the C m(maj7)(b5)/A# chord

  1. Play A# as the lowest bass note in the left hand
  2. Find C (Root) on the piano keyboard
  3. Add D# (Minor third) — 3 semitones above C
  4. Add F# (Diminished fifth) — 6 semitones above C
  5. Add B (Major seventh) — 11 semitones above C
  6. Press all 5 notes simultaneously to sound the C m(maj7)(b5)/A# chord

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