An American made genre originating in the 1940s,it is the predecessor to Rock music. Similar to jazz, R&B/Soul is based in a heavier, insistent beat. The genre has evolved to encompass many different styles since its conception, merging with other styles to create new sounds. Solo performers and groups are typical, while the vocal element is strong. In recent years, the term R&B has come to describe Soul music’s merger with Pop.