Tom Petty and the Heartbreakers are in town Thursday and Friday, but they had Wednesday all to themselves. So what did Heartbreakers guitarist Mike Campbell do Wednesday night? He hit the stage in Somerville. There’s nothing cooler than seeing a national musician up close in a intimate setting. I was blessed to see Don Henley up close on the A & M Records stage in Hollywood. Thanks Mike Campbell for giving your fans a memorable gift that does not happen often.