Share 'Playing real good for free'

Whenever I enter my BART* station, morning or evening, I’m treated to someone’s musical performance. I can think of more than a dozen musicians or groups who play my BART plaza with regularity. Most of them are pretty decent, some are embarrassingly bad, and a couple of them are superb. One who falls in the superb category is a man who plays classical guitar. His guitar is almost as beaten up as…