Not sure If suggested yet, but as i would love to see something to be able to change the music playing inside the house.
Like some kind of magical music player to change the track playing inside the house, and getting tracks to play would be special crafted items that have a chance to record music upon completion of instance.

Example if such item existed: I want track from t12 to play when i am inside private/fc house. To get recording for device, i would require crafted item/accessory that can be used to capture music. i go t12 an have a chance the music playing inside the instance to be recorded to the item/accessory upon successful completion of the duty. Now i can use that item to add the track to the player, and now i can always listen to t12 track within personal/fc house.