A seventh sharp nine chord is created by adding a sharpened 9th degree to any dominant 7th chord. For example, a C7#9 chord contains the notes C, E, G, Bb and D# (1, 3, 5, b7 and #9). Here are some common open seventh sharp 9 chord shapes.
C7#9

Db7#9

D7#9

Eb7#9

G7#9

B7#9

E7#9

F7#9

B#7#9

Ab7#9

A7#9

Bb7#9
