Dominic Lalli Joined the Party to Release New Music at Red Rocks Gramatik delivered one of the best sets from the 2018 concert schedule at Red Rocks Amphitheatre on Saturday, September 1. Gryffin, Haywyre & Ramzoid waxed the stage with electronic dance music before the gigantic Gramatik set. Before the concert, my friend Jessica noted that Gramatik had performed a three hour set at Red Rocks. I was stunned and shocked. Most average shows last an hour and a half. I've talked with booking teams in the past, and they noted that people start to tune out after 90 minutes. That