Schoenberg chose an unusual ensemble for his chamber symphony, with ten wind players and only five string players. This rearrangement of ensemble relationships, pioneered by Schoenberg, found enthusiastic followers, including Alban Berg. His finely crafted Kammerkonzert requires an ensemble of no less than thirteen wind instruments, with the piano and violin as soloists. Berg wrote the work on the occasion of Schoenberg’s fiftieth birthday. The closing piece of the programme is the deeply moving, wonderful requiem Songs for Sue (2006), which Knussen composed after the death of his wife.