I was once in a crowd of Rush fans all wearing Rush tee shirts watching a Rush tribute band doing all Rush songs just before a Rush concert. The Rush fan couples all wore matching Rush tee shirts. I thought the Rush fans would be singing along but instead were studiously debating how much each Rush song sounded just like it did on the Rush album. Anyway we got bored and left after the song about Tom Sawyer and walked back through the fairgrounds, then turned and headed back. There was still a crowd of Rush fans all wearing Rush tee shirts watching a Rush tribute band also in Rush tee shirts doing all Rush songs just before the Rush concert. The Rush fan couples still all wore the matching Rush tee shirts. They weren’t the same Rush fans, though, I’d seen other Rush fans wearing Rush tee shirts walking through the fairgrounds. It was an interchangeable Rush audience. A modular crowd. You could remove a couple in matching Rush tee shirts and they’d be replaced by another couple in matching Rush tee shirts. They’d watch the Rush cover band a while, discuss how much the Rush tribute band version of the song sounded like the song on the real Rush album, and then leave for a bratwurst and a beer and be replaced by interchangeable Rush fans in Rush tee shirts. I thought by now with all the beer they’d be singing along but they were still studiously debating how much each song sounded just like the album, only debating a little louder. I’m actually not sure if the Rush tribute band playing when we returned was the one that had been playing before. There was a whole string of Rush cover bands playing outside the arena that afternoon. This one didn’t play the Tom Sawyer song though, or if they did I didn’t hear it. I would have recognized it, however, because it’s the only Rush song I know and could tell how much it sounded like the one on the album. Not that I have the album. I mean, I can’t stand Rush, personally, but it was an interesting experience, plus I could have had my computer repaired on the spot.