There's a possibility you haven't considered. Maybe Zou Zou's doesn't run a music series, but they allow someone else to run one. That person originally talked the Zou Zou management into letting him play so that he would have some exposure and a place to sell his CDs, and he organized it into a series as a service to other performers, but he doesn't want any of the other performers jeopardizing his fragile relationship with the management.

I don't know if that's the case or not, but it's what the document sounded like to me.