C 13th chord
C13 chord for piano presented by keyboard diagrams.
Explanation: The C thirteenth is a seven-note chord. Due to practical circumstances, some notes (as a suggestion fifth, ninth, and eleventh) are omitted and the chord is played inverted. The chord is sometimes played with both hands. The chord is often abbreviated as C13.
Omissions: C13(no3): C - G - Bb - D - F - A; C13(no5): C - E - Bb - D - F - A.
Theory: The C thirteenth chord is constructed by adding a third to an eleventh chord.
Notes: C - E - G - Bb - D - F - A