r&b (Rhythm & blues)

 Rhythm and blues, often abbreviated to R&B, is a genre of popular African American music that originated in the 1940s.The term was originally used by record companies to describe recordings marketed predominantly to urban African Americans, at a time when "urbane, rocking, jazz based music with a heavy, insistent beat" was becoming more popular.By the 1970s, rhythm and blues was used as a blanket term for soul and funk. In the 1980s, a newer style of R&B developed, becoming known as contemporary R&B.