I do know that Google has a Music Timeline, nevertheless it's horrendous. The radio was a key factor in the emergence and growth of the populartity of rock & roll. In the late 1940s the television nonetheless was not ubiquitous within the …

The CBMR documents, collects, preserves, and disseminates information about black music and the black musical expertise in all parts of the world. Except, in fact, on the subject of pop music, the topic of this special issue. In relation t…