At the end of this work, its composer's opus 34, the brass section plays the central theme while the instruments enter a fugue one by one beginning with the piccolo.  
At the end of this work, its composer's opus 34, the brass section plays the central theme while the instruments enter a fugue one by one beginning with the piccolo.  The central theme is taken from the incidental music to Aphra Behn's Abdelazar.  In sequence, the woodwind, brass, strings, and percussion are then featured with each individual instrument given its own variation.  Subtitled Variations and Fugue on a Theme by Henry Purcell, FTP, name this work originally composed to accompany a documentary on the orchestra by Benjamin Britten.
At the end of this work, its composer's opus 34, the brass section plays the central theme while the instruments enter a fugue one by one beginning with the piccolo.  
A Young Person's Guide to the Orchestra