According to my new Fitbit, at the concert I attended last night, I took about 14,000 steps and climbed 7 flights of stairs. (I didn't actually climb any flights of stairs, but I guess if you jump up and down enough and/or wave your hands over your head, the device interprets that as an elevation change.)
Mind you, last night's headliner was Eluveitie, and they played a set consisting of 45 minutes of folk metal, 30 minutes of acoustic Irish folk music, and 45 more minutes of metal. I doubt the number of steps would have been that high if it had been an evening of funeral doom metal.
I am also amused that on the heart rate monitor data, I can pinpoint the time when the band asked everyone to dance and then played the following song. Got my heart rate right up into the Cardio Zone there.