How Many Black Tapes Are There?

There's no way anyone can play symphony at the summit of mount ararat. I believe they're all connected, and the connection is you. How did you find out? Waincoats, wain, you talked to wayne. And i'm starting to wonder exactly how many black tapes there are. Are they really unsolved because you don't have the technology yet, or is there another reason you collect these particular cases?