Rock n Roll came from blues, and the Beatles at the beginning imitiated several black musicians from the USA who played guitars, and sang rock and roll and then they moved into something else when they moved to India . I am a crate digger or music collector
How The Beatles Reinterpreted Black Music
That feeling that the Beatles gave to their music at the beginning ( like cuban boleros ) came from the south of the USA, in some of their songs Ringo played bongos. Most Argentinean do not want to accept that Tango is black music, and the Cueca from Chile is black music