I feel kind of dumb for asking this since I've seen Blue Man Group many times (on tour, Luxor, Venetian, Monte Carlo) and have recommended the show many times on this board, but I'm usually paying attention to the show and not really thinking about whether it comes across as being loud. My parents are coming to town and I'm trying to find a show that they'd be interested in watching. My mom is somewhat sensitive to extended periods of loud sounds. As far as I can think of, most of the show is actually quite mellow, with the drumming portions not really that loud. I don't remember ever leaving the show with a headache or with my ears ringing. I think the only time it gets a bit louder would be when the band comes in on top of the BMG drumming (like halfway through Drumbone). What do you guys think? I think it's easier to tell if you saw it once, since you'd distinctly remember it being really loud if it was. Thanks!