During the 1950s the term rock and roll was actually a synonym for black R&B music. Rock and roll was first released by small, independent record companies and promoted by radio disc jockeys (DJs) like Alan Freed, who used the term rock 'n' roll to help attract white audiences unfamiliar with black R&B. Indeed, the appeal of rock and roll to white middle-class teenagers was immediate and caught the major record companies by …showed first 75 words of 353 total…

…showed last 75 words of 353 total…Carl Perkins on his Sun Records label. The earthy style of guitarist Bo Diddley derived from the blues of the Mississippi Delta region. The standard four-piece instrumentation of rock bands (drum set and lead, rhythm, and bass guitars) was developed by Texas musician Buddy Holly, who produced his own studio recordings. From the urban North came the vocal style of doo wop, which influenced such vocal groups as the Chords, the Penguins, and the Platters.