Joseph Haydn: Sonata Hob. 16 No. 17 in B-flat Major from Sonatas - piano sheet music to print instantly. This piece is level 6 and was composed during the Classical period. This piece is composed by Joseph HaydnIt was written during the Classical period. Title: Sonata, Hob. 16 No. 17 in B-flat Major from Sonatas. The difficulty level if graded by ABRSM would be approximately 6 and it belongs to the Classical period.