It's too bad that every issue of Southern Cultures can't come with a CD. SC's music reviews and its feature column, Upbeat Down South, would sure mean a lot more if you could hear what we're talking about. Now you can, with Southern Cultures On-Line's new music section. Upbeat Down South Tie-ins to SC's feature column by Gavin Campbell. Reviews Southern Cultures music editor, Gavin Campbell, reviews newly released CDs that have an obvious Southern flavor. Sounds of the South Not sure what constitutes a Southern musical genre? Take a tour of the major Southern musical styles in Southern Cultures' "Sounds of the South" exhibit.