Conductor Kent Nagano talks to Sean Rafferty about his concert with the BBC Symphony Orchestra at the Barbican in London last week. The recital, part of the Barbican's 'Total Immersion: Percussion!' saw the orchestra performing the UK premiere of 'Tutuguri', Wolfgang Rihm’s work for large orchestra, percussionists, taped chorus and speaker. Nagano spoke about the process of realising such an ambitious work, as well as the story of how a meeting with Frank Zappa lead to a stint conducting the London Symphony Orchestra.