Composer and producer Charles Amirkhanian has spent much of his career exploring, featuring and supporting experimental and contemporary classical music. A former music director of pioneering radio station KPFA, he co-founded the Other Minds contemporary music festival and subsequently was offered the chance to bring KPFA’s rich collection of audio and video recordings related to 20th and 21st Century music under its auspices. The archive, which includes interviews, performances and other materials from composers including George Antheil, Frank Zappa, Morton Feldman and Laurie Anderson, is now available online, and A Tempo host Rachel Katz speaks with Amirkhanian, executive and artistic director of Other Minds, about the archive, its holdings, and the musical legacy that it documents.