Anachronism? After you've danced nothing but Salsa for 3 hours (what's the matter--aren't you smart enough to learn how to do more than one dance?), what do you do when the band or the DJ gives you a chance to use some other muscle groups by playing something slow and romantic? You can rock back and forth in a bear hug, or you could learn to do it right. "Slow Lounge" is a style, and it's newer--much newer--than you think