A major highlight in each of Carnegie Hall’s past three seasons has been the Danish String Quartet’s Doppelgänger project, in which the ensemble pairs a Schubert string-quartet masterpiece with a new work inspired by it. The quartet’s most recent performance was described by The New York Times as “ensemble music at its finest.” The Danish String Quartet now concludes the four-year series by pairing Schubert’s towering String Quartet in G Major with a New York premiere by Bent Sørensen. When this program premiered at Amsterdam’s Muziekgebouw, critics raved that “Sørensen’s work will surely assimilate into the classic repertoire” (Bachtrack).