Origins of rock and roll that inspired Alan Freed to coin the phrase "rock and roll" to refer to the music he played. Freed first started playing the music in 1951, and by 1953 the phrase "rock and roll" was becoming used much more widely to market the music beyond its initial black audience. The practitioners of the music were young black artists, appealing to the post-war community's need for excitement, dancing and increasing social freedoms, but the music also became very attractive to white teenagers. As well as "rocking" rhythm and blues songs, such as the massively successful and influential "Rocket 88" recorded by
Canadian Disc Jockey Association Canadian Disc Jockey Association The Canadian Disc Jockey Association (CDJA) is a not-for-profit trade association for disc jockeys across Canada. The CDJA was formed in 1976 and incorporated in 1978 to serve not only the disc jockey trade but the consumer, as well. It is a self-regulating association and operates under a national constitution and code of ethics. Its members either belong to one of many chapters in major cities across Canada or in some cases, where there is not one nearby, they are known as "unchaptered" or National members. The CDJA has established a code of conduct specifying the