The Vienna Philharmonic opens its 2011 Salzburg Festival residency tonight with a concert of music by Alban Berg and Gustav Mahler.
Pierre Boulez conducts and is joined by Anna Prohaska, Dorothea Röschmann, Anna Larsson and Johan Botha.
The concert will be broadcast on Sunday 7 August at 11am on ORF OE1 Radio.
Watch Pierre Boulez talking to UE about the music of Gustav Mahler
Watch on YouTube