It's the bottom of the third inning at AT&T Park in San Francisco and the Giants are mounting a rally.Steve Hogan tickles the ivories of his portable Hammond organ and reacts to a play on the field at AT&T Park in San Francisco.Claire Uwers, age 6, introduces the next Giants batter at a recent game as organist Steve Hogan awaits his cue at San Francisco's AT&T Park.Steve Hogan's outpost is spartan, but it affords a pretty good view.Steve Hogan