Composer Marcus Maroney is featured in Orchestra of St. Luke’s concerts at the Chelsea Art Museum (Saturday) and at Dia:Beacon (Sunday). Program also includes music of David Rakowski, Ingram Marshall, and Anna Weesner…. Please welcome a blog by critic Zachary Lewis…. Bartione Tom Meglioranza is writing a wry, revealing behind-the-scenes account of his progress in the Naumburg competition.