"I'm wondering if there were any non-White people at that festival."

Audience or performers, or both?

For the performers, it was predominately white, but there were a number of non-white (African American, Latino,and Asian)performers.   These artists offered contemporary styles as well as more traditional offerings, including sacred steel.   

As far as the audience, there was even very little non-white - that I could see. To be honest, and this is not trying to sound like co-out answer, I really wasn't paying attention. I probably should have, because I think it is an important topic, and one that should probably be in a thread by itself. Philadelphia Folk Festival is not unique in this sort of representation. I really believe that this year they made an attempt, but who are they trying to reach and how? The same goes for just about any festival that books itself under the word "folk".