Clarinettist, composer, cross-cultural collaborator, MIT professor and general live wire Evan Ziporyn plays Big Ears on Sunday. Known for an extraordinary variety of albums and collaborations with groups all over the world - from Bang on a Can (which he directed for 20 years) to Kronos Quartet, the Silk Road Ensemble, Roomful of Teeth, Maya Beiser, the American Composers Orchestra to mention just a few - he is also one of the world’s leading performers of Terry Riley and gives the American premiere of Riley’s Ki, developed in close collaboration with the composer. 25 years after he went to NZ with Bang On A Can, Charlotte Wilson talks to him again about Terry Riley, Moondog, gamelan, and what led him down the path of the avant garde