A cycle in music is a pattern that repeats over and over again. Think of it like a merry-go-round - you go around and around, passing the same things again and again. In music, the cycle is made up of different parts, called phrases. Each phrase has a different melody or rhythm, but they all fit together like puzzle pieces. When you hear a cycle, you might notice that it feels familiar or predictable - that's because your brain is hearing the same patterns over and over again! Cycles can be found in all kinds of music, from nursery rhymes to pop songs to classical music.