We talk to members of two ensembles who've helped change the sound of “classical” music. Violinist David Harrington is the founder of the Kronos Quartet, which has revolutionized the string quartet repertoire. Matt Albert is violinist and violist with Eighth Blackbird, a talented and inventive sextet who've further extended the range of classical expression. Both Kronos and eighth blackbird are performing at this year's Cabrillo Festival of Contemporary Music. David and Matt joined us to share their passion for music, reflect on their work and talk about their Cabrillo Festival performances.