Sara Mohr-Pietsch introduces music by Stockhausen, Messiaen, Xenakis and Harvey.
BBC Radio 3
Mauricio Kagel's eight Pieces of the Compass Rose, played by the London Sinfonietta.
Ivan Hewett introduces music by Luciano Berio and Salvatore Sciarrino.
Works by Goehr and Birtwistle, and Maxwell Davies's Eight Songs for a Mad King.
Robert Worby presents music by Stockhausen and Boulez in conversation with Paul Griffiths.