I love the [untitled] series. The concert happens later in the evening (10 p.m.) in the lobby of Benaroya Hall. Some attendees dress more casually for the event, while others dress to the nines because they're the kind of people who do that. The people-watching is excellent, and the music is always cutting-edge and daring. At this iteration, the Seattle Symphony Orchestra and pianist Cristina Valdés will present the work of four contemporary Latin American composers, including world premieres from Carlos Sanchez-Gutierrez and Juan David Osorio. by Rich Smith