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