Cycles of 3's and 7's is a performance in which the harmonic intervals that would ordinarily be performed by a musical instrument are represented through the computation of their arithmetic relationships or frequency ratios. Conrad and the other members of the Theater of Eternal Music—LaMonte Young, Marian Zazeela, John Cale, and Angus MacLise—composed and performed "dream music" in the early '60s. This seminal group was a major influence on what became known as minimalist music. Conrad's tape points to an important intersection of conceptual and performative experimentation in which the theoretical basis of sound and visual imagine tools were explored by musicians, filmmakers, videomakers, and electronic instrument designers.