Two thirds of the way through a varied and charmingly scraggly set spanning four decades of blues-informed rock and glam-saturated power pop, Aerosmith lead singer Steven Tyler uttered something a little dangerous. Well, dangerous for any band playing an 18,000-capacity venue like Ridgefield, Washington’s Amphitheater Northwest. And with that, the band dusted off a boogied-up version of “One Way Street,” a song that dates back to their 45-year-old self-titled debut. With Aerosmith back in their default mode of flamboyance and fun, the show became an experiment in trying to summarize their 45-year evolution in one cohesive, entertaining set. Tyler and Co. have been been mixing things up during this run of dates, swapping out one Seventies favorite for another while still making sure to deliver the hits from their late Eighties–early Nineties renaissance.