Perpetuum mobile (Latin), moto perpetuo (Italian), mouvement perpetuel (French), literally meaning "perpetual motion", means two distinct things:

1. Pieces of music, or parts of pieces, characterized by a continuous steady stream of notes, usually at a rapid tempo.

2. Whole pieces, or large parts of pieces, which are to be played repeatedly, often an indefinite number of times.

The ostinati repeats throughout, with developing material in the woodwinds above.

Instrumentation: Piccolo, 2 Flutes, 2 Oboes, English Horn in F, 2 B-Flat Clarinets, 2 Bassoons, Contrabassoon, French Horn in F, Triangle, Timpani(4), Maracas, Drum Sticks, Glockenspiel, Solo Violin, Solo Violoncello, Solo Double Bass, Violin I, Violin II, Violas, Violoncello, Double Basses