The C-sharp dominant thirteenth chord (abbreviated "C#13 chord") is a seven-note chord consisting of the notes C, E, G, B, D, F, and A. The chord is formed by adding a thirteenth to a C-sharp dominant eleventh chord.

In practice, the fifth (G) and eleventh (F) are often omitted from the C#13 chord to avoid a very dissonant sound, and because it's not always possible to play all notes simultaneously.

Name
C-sharp dominant thirteenth chord
Notes
C E G B D F A
Intervals
1 3 5 7 9 11 13
Chord symbol
C13
Type
Heptad (seven-note chord)

C#13 chord on piano

C#13 chord on guitar

C#13 chord on ukulele

C#13 chord on the staff