Is it hip to like Mannheim Steamroller yet? If not, can it be? The progressive rockers have been synthesizing Christmas since 1984, providing bottomless laughs and endless opportunities to play air MIDI keyboards over the holidays. Little did Chip Davis, Mannheim Steamroller founder, know he'd change the entire Yuletide soundscape when he decided "Deck the Halls" didn't sound enough like a promotional VHS for Minnetonka, Minnesota's 1982 Chamber of Commerce. The group's annual, cross-country Christmas tour is a yearly staple and their stops in Little Rock are as reliable as their sweet electronic drum fills. It's a one-night-only affair, so get to getting while the getting's good. After all, if you miss this one, you'll have to wait three whole weeks before you get another chance to see hokey prog-rock Christmas when Trans-Siberian Orchestra comes to town.