Mark Russell and Robert Sandall hunt out electronica, free improv and techno in the clubs, studios and record shops of Barcelona. They talk to maverick avant-pop combo Superelvis and composer of music for rubber bands Alfredo Costa Monteiro , and catch up on the events of Sonar, the city's annual festival of electronic music and multimedia. Plus music from ex-pat residents Pan Sonic and trumpeter Mark Cunningham. Producer Philip Tagney