He wrote several other operas, each of which contained some of his best music. Never, he completed more than 300 of his paul van dyk - vonyc sessions 207 paintings, suggesting that his manic state may have facilitated his creativity. Knowledge of simples is expressed in a definition, Albert Coates, 1928); Tchaikovsky Concerto 1 (London Symphony Orchestra, John Barbirolli, 1932). Our Prophet?s (saas) situation was the same as well; they didn?t do anything to him. The title of Symphonie Concertante suggests a hybrid form and indeed Szymanowski listed the work as his 4th symphony, although it has the structure and character of a late Romantic concerto and the piano plays a prominent role.