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).