Demand on rock'n'roll blog, based in gonzo journalism content - Market Research

I would like to check the Internet demand for of rock'n'roll blog based in gonzo journalism content. 1) Check the demand for content about music and rock'n'roll 2) Check what are the main portals of content 3) Check if people who consume this kind of information would be inclined to consume not only the usual type of descripted information, but information involved with the experience of searching itself.