Just a thought that occurred to me... seeing as there are enough music blocks to fill a large bag (and then some!) , why not have a music crafting skill, where one would arrange music blocks to make them play in order, maybe you could burn CDs, press vinyl, etc... ?
Broadcasting? just some thoughts. You;'d totally have to work with the bureaucrats to learn broadcasting! And you'd need to use the tinkering skill combined with music crafting to make a boombox (maybe boomboxes aren't a good idea...could get annoying. how about an iGlitch?)