A sus(#4)
The A sus(#4) chord consists of the A (Perfect unison), D# (Diminished fifth) and E (Perfect fifth) notes.
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How to play the A sus(#4) chord
- Find A (Root) on the piano keyboard
- Add D# (Diminished fifth) — 6 semitones above A
- Add E (Perfect fifth) — 7 semitones above A
- Press all 3 notes simultaneously to sound the A sus(#4) chord