The link goes to the version you can pay to download but note that you have several options to hear this including live radio today!

The play will air 7-9 pm Pacific today on live radio - online at www.kpfk.org/ and on radio in southern California (KPFK 90.7 FM in Los Angeles, 98.7 FM in Santa Barbara, 99.5 FM in Ridgecrest/China Lake, 93.7 FM in Rancho Bernardo/North San Diego). It will also be available for streaming online through December 1 (presumably after the live version has aired).