The Bronze is a nightclub in Sunnydale, the fictional setting for the television series Buffy the Vampire Slayer. As the lead characters of Buffy are in high school during the first three seasons, The Bronze is a coffee bar that hosts live music and serves as a nightclub (but without alcohol, as the drinking age in the U.S. is 21).
The Bronze seems to have an unlimited refurbishment and furniture-replacement budget and, throughout all seven seasons of Buffy, served as the venue for most night-time social settings. They do seem to serve some alcohol on occasion, but the main characters are more usually seen drinking cappuccinos; as can be seen from the episode "Beer Bad", the programme does not encourage drinking.
That The Bronze plays live music was not only used as a plot device for Oz's band Dingoes Ate My Baby but also as a subtle means for the production team to showcase new bands in the Los Angeles area.