Taking piano lessons at the age of three and composing by five, William Mathias became one of Britain’s leading 20th-century composers. This work provides details of the composer’s life’s work. It includes a biography, a complete list of works and performances, a discography of sound recordings and an annotated bibliography, along with appendixes and an index. This book should be of interest to musicologists and students, as well as the general reader interested in 20th-century music. Mathias was a prolific and versatile composer whose works included opera and music for orchestra, chamber groups, solo instruments, organ, brass ensembles, choral, church, and children’s groups. His wedding anthem for Prince Charles and Lady Diana was heard by over 750 million people around the world on television - probably the largest audience for any first performance of a new work.