By Don Heckman Singer Patty Peterson made one of her rare Southland appearances Wednesday night at Vibrato Grill Jazz…etc. in Bel Air. And, not surprisingly, the broad vowel sounds of Minnesota-speak were heard throughout the enthusiasic audience. Why? Because the tall, raven-haired Peterson belongs to Minneapolis’s First Family of Music, whose various siblings, cousins and… Read More Live Jazz: Patty Peterson at Vibrato Grill Jazz…etc.