[Most technology is still very new to Cu, so the thought of some object just playing music makes him uncomfortable. He grimaces.]

Sounds like it. Being alone in there so long drove him crazy, huh? Maybe he didn't even know you were there and just left all that in case someone found it.

Worst I dealt with were some weird sounds, stuff knocked over, tapestries pulled down. Never knew if it was someone screwing with me or an Unseelie fae I'd upset.