The Young Person's Guide to the Orchestra, is a musical composition by Benjamin Britten in 1946 with a subtitle "Variations and Fugue on a Theme of Purcell". It was originally commissioned for an educational documentary film called Instruments of the Orchestra, directed by Muir Mathieson and featuring the London Symphony Orchestra conducted by Malcolm Sargent. The work is one of the best-known pieces by the composer, and is one of the three popularly-used scores in children's music education, together with Saint-Saëns' The Carnival of the Animals and Prokofiev's Peter and the Wolf.