Why I like the internet. Or one of the reasons why. Because by googling and clicking and searching further and further, you make some remarkable discoveries. Awhile ago I was watching a homemade Glee fan video on YouTube (I admit it) and was struck by the music track used. The phrasing sounded a bit like Tracy Chapman in that staccato way she’s got, but the voice was purer, more angelic. A few more clicks and I found out the song was called “Half-Boyfriend” by someone named Jay Brannan. Click, click, search and I'd not only learned more about Jay Brannan and seen dozens of photos, but I’d located videos of live performances, found his own videos shot in his Brooklyn apartment and purchased every CD and MP3 of his that I could find. From his own website I learned I’d just missed his tour stop in Boston, but I was poised for his next visit. And when it came time, I bought tickets online the first day they went on sale. Man, he is good. Not only that voice. But an onstage presence so casual and amiable, so nonchalant yet entirely in control of the capacity crowd at Cambridge’s intimate Middle East club, many of whom sang quietly along and behaved in an appropriately reverent manner. It sure beat anything on the internet. Here’s a photo from our upfront vantage point.