Greetings, all. I'm still in catch-up mode after a stretch off the grid. And in my absence, a couple of choice shows popped up on the calendar. One is Tom Petty and the Heartbreakers, who will play Raleigh's Time Warner Cable Music Pavilion on May 6 -- the very first date on their U.S. tour, as it happens. The very next night, May 7, brings the great singer/songwriter John Prine to Cary's Booth Amphitheatre with Old Crow Medicine Show in tow as opening act. Pre-sale action on both shows is already going on.