Original: After Troilus and Cressida , Walton returned to orchestral music , composing in rapid succession the Cello Concerto ( 1956 ) , the Symphony No. 2 ( 1960 ) , and his masterpiece of the post-war period , the Variations on a Theme by Hindemith ( 1963 ) .
Simplified: Walton then started to write more orchestral music : the Cello Concerto ( 1956 ) , the Symphony No. 2 ( 1960 ) , and the Variations on a Theme by Hindemith ( 1963 ) .