Halloween in Denver: Deadmau5 brings two nights of Halloween shows to Red Rocks, while Itchy-O, DeVotchKa and local indie bands have costume-ready events around the metro. Denver’s homegrown haunted-house business has also grown from a strip-mall attraction into 18 Halloween venues and about 4,500 seasonal jobs. Live Music: The Boettcher Foundation has pledged $2 million toward the Colorado Symphony’s campaign to renovate Boettcher Concert Hall. Arts & Culture: RMCAD welcomes director, author and animator Julian Glander for a visiting-speaker event, and the Estelle Center for Creative Arts has launched an artist-in-residency program. Museum Scene: The Denver Art Museum has a Picasso exhibition on the way and is exploring the world of divas in another show. Community Arts: Denver’s Latino Cultural Arts Center, Las Bodegas, has opened its doors.