Back in 1913, modernism made its much-talked-about New York debut at the Armory Art Show. Now, a century later, the American Symphony Orchestra recalls those exciting years with a Carnegie Hall concert spotlighting the avant-garde era in music. Produced in conjunction with a New-York Historical Society retrospective, the performance includes works from Edgard Varèse, George Antheil, Aaron Copland and more. Conductor Leon Botstein leads the ASO with Blair McMillen on piano, flutist Randolph Bowman and organist Stephen Tharp. He’ll also lead a pre-concert Q&A on this intriguing program.