Cycle.

About Cycle

In music, a cycle can be several things. Acoustically, it is one complete vibration, the base unit of Hertz being one cycle per second. Theoretically, an interval cycle is a collection of pitch classes created by a sequence of identical intervals. Cycles are also individual pieces of larger works, like the movements in a suite, symphony sonata, or string quartet. This can range from settings of the Mass or a song cycle to an opera cycle. Another cycle is the complete performance of an individual composer's work in one genre.