Johann Sebastian Bach: Chromatic Fantasia & Fugue BWV 903 in D Minor - piano sheet music to print instantly. This piece is level 8+ and was composed during the Baroque period. This piece is composed by Johann Sebastian Bach and was published in 1720. Title: Chromatic Fantasia & Fugue, BWV 903 in D Minor . The difficulty level if graded by ABRSM would be approximately 8+ and it belongs to the Baroque period.