I am going to develop a little my intention with this post.
I have seen many students of KY doing gong courses and learning to play as performers or therapists. It could be fine and funny but not necessarily KY.
KY Teachers in the Golden Chain as taught SSS Yogi Bhajan and it is presented in the original manual he approved. Gong is played within the class structure as a tool to support kriya, relaxation, meditation, the final goal of kundalini awakening and to the teacher.
Just be sure that you understand how to use the gong for teaching KY asking to you Mentor.