A# Petrushka chord/C

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

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

How to play the A# Petrushka chord/C chord

  1. Play C as the lowest bass note in the left hand
  2. Find A# (Root) on the piano keyboard
  3. Add B (Minor second) — 1 semitone above A#
  4. Add D (Major third) — 4 semitones above A#
  5. Add E (Diminished fifth) — 6 semitones above A#
  6. Add F (Perfect fifth) — 7 semitones above A#
  7. Add G# (Minor seventh) — 10 semitones above A#
  8. Press all 7 notes simultaneously to sound the A# Petrushka chord/C chord

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