 His works have received thousands of performances and recordings from such groups as the New York Choral Society, L.A. Master Chorale, the Apollo Chorus of Chicago, Robert Shaw Festival Singers, VocalEssence, the Chicago Master Singers and Dale Warland Singers.Notable works for vocalist and orchestra include commissions for Thomas Hampson, Deborah Voigt, Samuel Ramey, Elizabeth Futral, Håkan Hagegård and Evelyn Lear.Instrumental soloists range from Doc Severinsen and Leo Kottke to Robert McDuffie, William Preucil, Lynn Harrell and Cynthia Phelps.