If you think Vivaldi's "The Four Seasons" is overdone, wait until it’s mixed with "The Four Seasons Suite" by Argentinean composer Astor Piazzolla. Violinist Lara St. John offers a fascinating comparison between the two. And, she talks about moving beyond a "classical babe" after arriving on the scene 10 years ago posing "topless" with just a violin on her album cover.