Midtown's Art Closet Studios (3951 Broadway) is becoming a one-stop shop for arts in the community. It's an all-ages music venue and arts-education center, and an art-materials exchange center. Co-founder Mike Moreno has recently taken over Open Fire Wood Burning Pizza, the anchor tenant, and is operating it as ACS' main source of funding. Support ACS at an art lock-in, with live music, collaborative art and performance art, from 3 p.m. today until 7 p.m. Sunday. The $5 ticket price (paying guests are free to come and go) benefits ACS. Find out more about ACS by searching for it on Facebook.