ENTERTAINMENT
May 12, 2002 | ROBERT HILBURN
As Richard Melville Hall stands in a health-food market aisle in his rumpled sweatshirt and jeans, lunch hour shoppers have no idea this diminutive fellow rivals Beck as the hip pop auteur of the day. He looks like just another 36-year-old bald guy trying to choose between barbecue seitan and tofu. Hall, better known to pop fans as Moby, puts a wheat-based seitan sandwich in his red shopping basket, alongside a fruit drink and energy bar, and heads to the checkout counter.