The League of Composers presents Il combattimento di Tancredi e Clorinda by Claudio Monteverdi, text by Torquato Tasso, under the direction of Werner Josten, and the American stage premiere of Les noces by Igor Stravinsky, under the direction of Leopold Stokowsky ... : for the benefit of The National Music League at the Metropolitan Opera House, Thursday, April 25th, at 8:45 P.M.