For the music thing, why not have a room with head sets hooked up too a computer generated list and have a system, where every headset could play a different song, then the people visiting could browse through the list and listen too their fav song without having too disturb others, you could do that in like a restaurant or lounge type area, of course then the music would have too be like, a complimentary service or something like that
That honestly sounds really rad, i would love too visit that, if i wasn't all the way here in Canada (Canadian pride! we won hockey gold!) lol, anyway what i would enjoy, and this is just me, is a massive arcade, i enjoy those alot, especially the multiplayer arcade games when someone can walk up and just jump right into the mess with ya, of course i always dreamt of VR games (virtual reality) but i'm getting ahead of myself, i'm a gamer, but call me a party gamer, I enjoy playing with my friends and family, so an arcade with the idea made for that would be cool, that would make my lil corner of this world better