Auctioneer - ala WoW for LoTRo - should be no sweat, right?
Midi Player - so you can have a midi version of your favorite song, and type something like /playmidi<song file> and my character starts jamming away on hit lute the notes of the midi file.
I can see it now, by the campfire, lets sing that old Deep Purple song,
Smoke over Mordor
a ringwraith in the sky.....
or something like that.......