I'm looking through student club images and found a Trance club.  I don't think I've ever encountered a trance club in game before and I was wondering if I should also make custom images for it.  I tried looking in the file editor and there's no mention of TranceClubChain either, is it maybe an upgraded religious study club? (which I don't think I remember there's a religious study club you can open either).  Can someone tell me if this is just a placeholder image folder or a real club you can open in game?

It's a placeholder for the music club chain (see NormalSchool/Clubs/MusicClubChain.xml). Looks like it just hasn't been implemented yet, there seems to be a few of these if you check the other .xmls in the folder.