Bridge – Two Pieces: Pensiero and Allegro appassionato – trans. for Clarinet and Piano PrintClarinetists, please check out our newest edition, an adaptation for clarinet and piano of Two Pieces: Pensiero and Allegro appassionato by the renowned English composer and violist Frank Bridge. Whereas the Pensiero is restrained and dark, the Allegro appassionato in contrast is exuberant and bright.