Before 1900, there was no central identity to British music and the environment for musical growth was sterilized by class divisions and a lack of national identity. The British public’s interest in American music and the important role that music played during the First World War expedited the process of evolution in British music by forcing British music to develop an identity that was rooted in national pride. The gramophone and radio provided the means by which the new music reached a mass audience and thus removed a major class barrier. Listeners were now able to turn on their gramophones and radios and hear British music. The clearly identifiable nature of British music would play a crucial role in the coming age of rock n’ roll. Without all of the changes that occurred between 1900 and 1930, it is plausible that the rock music craze might never have happened.