C# 7(b5)(sus)
The C# 7(b5)(sus) chord consists of the C# (Perfect unison), G (Diminished fifth) and B (Minor seventh) notes.
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How to play the C# 7(b5)(sus) chord
- Find C# (Root) on the piano keyboard
- Add G (Diminished fifth) — 6 semitones above C#
- Add B (Minor seventh) — 10 semitones above C#
- Press all 3 notes simultaneously to sound the C# 7(b5)(sus) chord