In the Echoes Podcast, John Diliberto talks about the art of improvisation with three veteran musicians, trumpeter John Swana, guitarist Tim Motzer and percussionist Doug Hirlinger. They are denizens of the avant-garde and new music scenes in Philadelphia and New York having played with David Sylvian, Jaki Liebezeit of Can, King Britt, Vernon Reid, David Torn, Donny McCaslin, Chris Potter, Pat Mastelotto of King Crimson and the Philadelphia Orchestra. They talk about intuitive free composition in a world of looping and electronics in the Echoes Podcast.