C# maj11(b5)(sus4)/G##
The C# maj11(b5)(sus4) chord consists of the C# (Perfect unison), F# (Perfect fourth), G (Diminished fifth) and B# (Major seventh) notes, with G## as the bass note.
(sus4)_Gsharpsharp.png)
How to play the C# maj11(b5)(sus4)/G## chord
- Play G## as the lowest bass note in the left hand
- Find C# (Root) on the piano keyboard
- Add F# (Perfect fourth) — 5 semitones above C#
- Add G (Diminished fifth) — 6 semitones above C#
- Add B# (Major seventh) — 11 semitones above C#
- Press all 5 notes simultaneously to sound the C# maj11(b5)(sus4)/G## chord