hythm, in music, the placement of sounds in time. In its most general sense rhythm (Greekrhythmos, derived from rhein, “to flow”) is an ordered alternation of contrasting elements. The notion of rhythm also occurs in other arts (e.g., poetry, painting, sculpture, and architecture) as well as in nadescribes a sound with a regular movement or beat that isrepeated:
ture (e.g., biological rhythms).