Denver’s missing cultural piece is a thorough overhaul of the Colorado Symphony’s home. “The overhaul of Boettcher, which is part of the Denver Performing Arts Complex, would address three main deficiencies: inadequate public spaces, inferior backstage amenities and troubled acoustics. It would include the addition of a wraparound, multistory glass lobby on the building’s Speer Boulevard side and a reconfiguration of the facility’s 2,634 seats.”