Despite a revolving supporting cast, prog-rock heroes Dream Theater's retains two of its core members — John Petrucci and John Myung (founding drummer Mike Portnoy departed a few years back). Since its birth in 1985, the group has mixed orchestral majesty with metal riffs. It's going to sound huge in the armory.
Dream Theater performs Friday, June 15, 8 p.m. at Main Street Armory, 900 E. Main St. $39.50-$45. rochestermainstreetarmory.com.