The Young Person's Guide to the Orchestra is a 1945 musical composition by Benjamin Britten with a subtitle Variations and Fugue on a Theme of Purcell. It was based on the second movement, "Rondeau", of the Abdelazer suite. 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 often associated with two other works in the context of children's music education: Saint-Saëns' The Carnival of the Animals and Prokofiev's Peter and the Wolf.
This work, in the composer's own words, "is affectionately inscribed to the children of John and Jean Maud: Humphrey, Pamela, Caroline and Virginia, for their edification and entertainment".
The Young Person's Guide to the Orchestra is scored for symphony orchestra:
The work is based on the Rondeau from Henry Purcell's incidental music to Aphra Behn's Abdelazer, and is structured, in accordance with the plan of the original documentary film, as a way of showing off the tone colours and capacities of the various sections of the orchestra.
In the introduction, the theme is initially played by the entire orchestra, then by each major family of instruments of the orchestra: first the woodwinds, then the brass, then the strings, and finally by the percussion. Each variation then features a particular instrument in depth, generally moving through each family from high to low (the order of the families is slightly different from the introduction). So, for example, the first variation features the piccolo and flutes; each member of the woodwind family then gets a variation, ending with the bassoon; and so on, through the strings, brass, and finally the percussion.