The title of this post would immediately suggest I might be referring to the buying and selling of recorded music - but actually my work with the Manchester Jazz Festival this week has highlighted a very different area. UKFast is making a short series of podcasts from the festival and it's a real eye opener talking to a lot of the musicians. In a niche genre like Jazz there are a lot of bands making their name solely through live performance, as opposed to album sales. Many of these talents are not shall we say of the Internet generation. Despite…