Maybe you don't know much about music subcultures now. But spend some time at the HIQI MEDIA FILM SERIES, and you should learn a little about a range of genres, from punk and hip-hop to rave and rock 'n' roll. With its seven documentaries and several short films, the series is in town SEPT. 21-OCT. 4 as part of a national tour. $3-$5 per show. Call for times and schedules. Cinefest, 66 Courtland St. 404-651-CINE. www.hiqi.com.