What type of artistic movement incorporates a lot of repetition and simplicity?

(1) In a random rhythm, a motif is repeated in no apparent order, with no regular spaces in between. Artists who splash their works with paint create random rhythms. (2) Regular rhythm and patterns have identical beats or motifs and equal amounts of space between them. ... One way is to introduce a second beat or motif.

Explanation:

i believe their role is to instruct certain sections on when they are to join and when they are to stop