This Fiery Festival of New Music is Cascadia Composers' 10th Anniversary Season kickoff event!  Presented in surround sound in the center of Portland's very own volcanic cinder cone, it showcases the variety and verve that has come to define Cascadia Composers.  Bring a blanket, a picnic, and a host of family and friends to enjoy this colorful and exciting multimedia celebration of art and expression! Free pet rocks for every audience member!  A "Paint Your Own Pet Rock Station" will be…