Rock and roll began as a fusion of R&B chord patterns, boogie-woogie piano rhythms, and a strong backbeat, which made the music exciting and danceable. Other artists mixed popular country influences with R&B, creating what was later dubbed rockabilly. But this music was more than rhythms and chord progressions. Culturally, it marked the beginning of the slow change in race relations in the U.S. and the gradual acceptance of minorities, first as entertainers and athletes, by the white majority. In this era, the music was often recorded directly to acetate, which forced the musicians to get it right on the first take. Let’s take a look at some of the drum parts that launched a musical revolution.