Tanner Montague came to town from Seattle having never owned his own music venue before. He’s a musician himself, so he has a pretty good sense of good music, but he also wandered into a crowded music scene filled with concert venues large and small.But the owner of Green Room thinks he found a void in the market. It’s lacking, he says, in places serving between 200 and 500 people, a sweet spot he thinks could be a draw for both some national acts not quite big enough yet for arena gigs and local acts looking for a launching pad.“I felt that size would do well in the city to offer more options,” he says. “My goal was to A, bring another option for national acts but then, B, have a great spot for local bands to start.”Right or wrong, something seems to be working, he says. He’s got a full calendar of concerts booked out several months. How did he, as a newcomer to the market in an industry filled with competition, get the attention of the local concertgoer?