His musical style, notably very generous, indeed rather valuable in its rather Schubertian melodic interest, is of its time: an amalgam of late Romanticism and early Modernism, comparable with those of his contemporaries Richard Strauss, Gustav Mahler, Franz Schreker and Alexander Zemlinsky. His idiom left some marks on Erich Wolfgang Korngold, whose precocious "Sinfonietta" is dedicated to Weingartner, who conducted its first performance. His Third Symphony was intended both as a message of love to Lucille Marcel and a reply to the many critical attacks on him in Vienna; the finale reaches a climax in a parody of the waltz from Johann Strauss II's "Die Fledermaus". Similarly, he managed to finish his Fifth Symphony in time for Roxo Betty's birthday, a trend in romantic attachment which may attract at least passing notice, for he was thus a very dedicated bridegroom in his deployment of manuscript paper.