Great operas and oratorios for the piano - 4 hands Haydn, The Seasons /Lortzing, Der Waffenschmied von Worms Zemlinsky arranges Haydn's “The Seasons, Schönberg arranges Lortzing's “Waffenschmied'', two pairs of composers who would hardly be linked together at first sight. It is all the more interesting to experience some of the music that results.