From the Royal Festival Hall.
The last concert in the BBC Symphony Orchestra's Composer Portrait series is a tribute to the creator of some of the most provocative and original music of the 20th century.
Karlheinz Stockhausen's unconventional approach to musical space is demonstrated in Gruppen, presented by the composer himself. This seminal work from the 1950s is interspersed with a selection of his Klavierstucke.
Andrew McGregor introduces the music and presents interviews with the composer.Â

BBC SO, conductors Martyn Brabbins, Pascal Rophe and David Robertson

Klavierstucke: I-V, VII, VIII, XIV, XI Ellen Corver (piano) Gruppen

8.00 Twenty Minutes
Mark Russell presents a survey of Stockhausen's long and varied career, with contributions from composers and performers associated with his music.

8.20 Klavierstuck IX
Nicholas Hodges (piano)
Karlheinz Stockhausen talks about Gruppen, with musical excerpts from the orchestra, and introduces a second performance of the work.