This change in musical taste among adolescents has led to changes in musical creation. There was a cross-current of musical styles: blues, boogies, jazz, gospel, R&B and country vocal groups, all having an influence on the new creations ("Rock Music Timeline"). These changes gave rise to a new style of music: “Rock and Roll”. The name was given by Alan Freed of Cleveland, Ohio Disc Jockey, in 1954. It was he who played early forms of rock and roll (a mixture of rhythm and blues and country) on his radio show (" Rock Music