David Robertson is one year into his tenure as music director of the once-beleagured St. Louis Symphony, and the reviews, both at home and on the road, have been good. But Robertson has always been known for his desire to connect with the larger community, and so, as the SLSO begins to promote its next season, he has taken to holding “town hall meetings” to which SLSO patrons are invited for the purpose of grilling their music director, even if they just want to complain about all the new music he’s programming.