By Mary Sack Tonight I witnessed yet another, one-of-a-kind Nashville Moment. It wasn’t a Grammy moment. Could’ve been, in an alternate universe. Three days after The Grammy Awards were broadcast live from Los Angeles, I saw a bona fide 2012 Grammy Nominee (for “Best Children’s Album”) Peter Cooper, bona fide rapscallion Phil Lee, new-to-me Dave Duncan and the surprisingly soulful…
