Symphony in B-flat major, Op. 20

The first movement follows a personal adaptation of sonata-form, dividing the development section into several sections, with a highly dramatic slow introduction, introducing the solemn main theme of the symphony. It slowly builds to an anguished climax only to be followed by a very swift and light-hearted allegro vivo in the key of B-flat major. The second subject is more relaxed and harmonised in chromatic-impressionistic chords. After a sudden heightening tension the Allegro Vivo theme is restated and the movement closes triumphantly.