Eric Crozier's narration originally accompanied this piece, which contains 13 variations on a theme taken from the "Rondeau" of Henry Purcell's  Abdelazer .
A section of this work opens with accelerating measures in which the woodwinds play a note accompanied by a tambourine strike, followed by an ascending triplet from the basses. A sudden note from the brass interrupts a series of harp runs in another section of this piece, while a third features alternating crescendoing and de-crescendoing passages for the trumpets and snare drum. The brass plays the primary theme, which begins with a D minor arpeggio, in the final section of this piece, which consists of a (*)  fugue begun by the piccolo. Eric Crozier's narration originally accompanied this piece, which contains 13 variations on a theme taken from the "Rondeau" of Henry Purcell's  Abdelazer . For 10 points, name this Benjamin Britten piece that demonstrates various instruments to children.
A section of this work opens with accelerating measures in which the woodwinds play a note accompanied by a tambourine strike, followed by an ascending triplet from the basses.
The  Young Person's Guide to the Orchestra 