By all accounts, Bernhard Henrik Crusell was a virtuoso clarinet player with outstanding tone. He wrote these three concertos for himself, which puts him in a fairly large group of instrumental players who have done this. The danger is that the pieces they write are display pieces, designed to show off their talents - very difficult to play but of less musical interest. This is not a problem here. These three works are very engaging, and though they are no doubt difficult to play the virtuoso element takes a back seat to musical interest.
The orchestration is skilful and interesting, and these concertos easily stand comparison well with those by Weber and Spohr (neither of whom played the clarinet). The opening movements are sonata form on a large scale with easily identifiable first and second subjects. The slow movements and finales are excellent.
Then there is the playing. Martin Fröst is astonishing in these works. If I were learning the clarinet I'd feel like giving up after listening to these performances. There seems to be nothing he can't do with this instrument short of making toast. The Gothenburg Symphony Orchestra under the direction of Okko Kamu is excellent. An outstanding disc!