C#13b9 chord

C#13b9 chord for piano presented by keyboard diagrams.
Explanation: The C#13b9 alter the C#13 by the change of one note. The C sharp thirteenth flat ninth is a seven-note chord, but due to practical circumstances, one or more notes (the fifth primarily) are omitted. The chord name can also be written as C#13(#b) or C#13-9.
Theory: Compared to C#13 the ninth tone in the chord is flattenedThe tone is one half step lower.

C#13b9

C#13-9 chord diagram
Notes: C# - F - G# - B - D - F# - A# / C# - E# - G# - B - D - F# - A#

C13b9 chord ‹ Previous • Next › D13b9 chord

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C#13#11 polychord

Explanation: The image below shows a polychord version of the C#13#11. The chord is played in two parts with both hands.

C#13#11 chord diagram
Polychord C#7 (LH), D# (RH)

C# chord categories

C# C#m C#7 C#m7 C#maj7 C#mM7 C#6 C#m6 C#6/9 C#5 C#9 C#m9 C#maj9 C#11 C#m11 C#maj11 C#13 C#m13 C#maj11 C#add C#7-5 C#7+5 C#sus C#dim C#dim7 C#m7b5 C#aug C#aug7