Arnold Schoenberg’s Second String Quartet was a revolutionary work. A harbinger of atonality, it also broke with tradition by adding a vocal part to the classic ensemble—a combination previously known only in song arrangements. Mojca Erdmann and the Marmen Quartet combine Schoenberg’s Opus 10 (which audiences will be able to experience in two different concerts this season) with a pair of such pieces by Guillaume Lekeu and Ernest Chausson, for which they are joined by a student of the Barenboim-Said Akademie on piano. The program opens with Heine settings by Felix Mendelssohn, arranged and adapted with contemporary intermezzi by Aribert Reimann.