BTW, just an idea, steemsongs could feature selling not only audio, but videos too, music videos of the artist of course, and also related download stuff, like backingtracks, tablature, music transcriptions, isolated tracks etc... Would be great that artists could sell all their merchandise with steem on this platform, also people would have more stuff to buy with the steem...
It would be no problem to integrate any of these things. Really I hope this opens the door to many more shops built on Steem. Our strength is our community.