A# sus4(b5)/F

The A# sus4(b5) chord consists of the A# (Perfect unison), D# (Perfect fourth) and E (Diminished fifth) notes, with F as the bass note.

Piano keyboard showing the notes for a A# sus4(b5)/F chord

How to play the A# sus4(b5)/F chord

  1. Play F as the lowest bass note in the left hand
  2. Find A# (Root) on the piano keyboard
  3. Add D# (Perfect fourth) — 5 semitones above A#
  4. Add E (Diminished fifth) — 6 semitones above A#
  5. Press all 4 notes simultaneously to sound the A# sus4(b5)/F chord

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