AKA: C#7 Flat 9, C#7(b9), C#7/b9, C# Dominant 7th b9, C# Dominant Seventh Flat Nine
Notes:
C#, E#, G#, B, D
(C#, F, G#, B, D)
Intervals:
R, 3°, 5°, m7°, m9°
Left hand:
C# + Bdim (D♭ + C♭dim)
Optional:
C# + C# Major + Bdim
(D♭ + D♭ Major + C♭dim)
Fingering:
3 + 2 or 4 + 2
Optional: 4 + 3 + 2
