 Initially composing in neo-classical and neo-baroque styles, his compositions took a modern turn, reflecting the influences of Igor Stravinsky, Anton Webern, Witold Lutosławski and Arnold Schoenberg, among others.Cornwall's orchestral works have been performed by the Lamont Symphony Orchestra, including "March of the Bride and Groom" (2004), "Parade of the Wedding Party" (2005), "The Grieving Maiden" (2005), "Triple Concerto for Piano, Violin and Cello