C13b9 chord

C13b9 chord for piano presented by keyboard diagrams.
Explanation: The C13b9 alter the C13 by the change of one note. The C 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 C13(b9) or C13-9.
Theory: Compared to C13 the ninth tone in the chord is flattenedThe tone is one half step lower.

C13b9

C13b9 chord diagram
Notes: C - E - G - Bb - Db - F - A

B13b9 chord ‹ Previous • Next › C#13b9 chord

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C13#11 polychord

Explanation: The image below shows a polychord version of the C13#11. The chord is played in two parts with both hands.

C13#11 chord diagram
Polychord C7 (LH), D (RH)

C chord categories

C Cm C7 Cm7 Cmaj7 CmM7 C6 Cm6 C6/9 C5 C9 Cm9 Cmaj9 C11 Cm11 Cmaj11 C13 Cm13 Cmaj13 Cadd C7-5 C7+5 Csus Cdim Cdim7 Cm7b5 Caug Caug7