Charles Hazlewood presents a roundup from this year's Sonorities festival, held in Belfast earlier this month, which concentrated on new music from Germany. He talks to composers Gerhard Stabler and James Clarke and includes music by Helmut Lachenmann ,
Nicolaus Huber and Dieter Schnebel in performances by Ortwin Sturmer (piano),
Christopher Redgate (oboe), Michael Bach
(cello), the Arditti Quartet and Apartment House. Producer David Byers