Hardback-This volume contains newly edited versions of four important later orchestral works by William Walton: Capriccio Burlesco Improvisations on an Impromptu of Benjamin Britten Prologo e Fantasia and Varii Capricci. The first three works were written for American orchestras: Capriccio Burlesco was commissioned by the New York Philharmonic Orchestra for its 125th anniversary year in 1968; t…