Six-Nine (6/9)

Open ending chord

Prove it — just do the practice exercise.
C6/9 Root Position
C (R)E (3)G (5)A (6)D (9)
The 6/9 combines sixth and ninth without a seventh:

• R – 3 – 5 – 6 – 9

Floating, open sound. Often used as a final chord in bossa nova and cool jazz.

Example: C6/9 = C + E + G + A + D