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