C7+9 (C7#9) altered chord

Altered C chord for piano presented by keyboard diagrams.
Explanation: The C7+9 alter the C9 by the change of one note. The chord name can also be written as C7#9 or C7(#9).
Theory: The C7+9 are identical with the C9 except that the major ninth is sharpened.

C7+9

C7+9 chord diagram
Notes: C - E - G - Bb - D#

B7+9 chord ‹ Previous • Next › C#7+9 chord

See also C7-9 chord ›

C chord categories

C Cm C7 Cm7 Cmaj7 C6 Cm6 C6/9 C5 C9 Cm9 Cmaj9 C11 C13 Cadd C7-5 C7+5 Csus Cdim Caug

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