One of the mainstays of RPGs is to have magic items. You know, a +1 flaming sword. That kind of thing.
Currently the random drops that you get in the game all feel kind of interchangeable. To me, a music block is not that different than a gem. They're just stuff that I will donate or sell.
What if you could get "magic" things? Like a +5 fancy pick, or a +2 earthshaker? I think it would make the game more interesting, as well as the auction house.