A lot of things in this game seem to be programmed really backwards. The orchestrion has a preview feature where you can listen to the songs, but I guess that's somehow tied to actually having the orchestrion furnishing in the area. Like the glamour dresser is apparently somehow tied to the "owner" of the current area in a way that makes the game crash if multiple players in the same area try to use one, and that's why they haven't added it as a furnishing yet.