Music
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AFTER THE FALL Baritone Nathaniel Webster performs Ned Rorem’s “Aftermath” song cycle, along with the Kalichstein-Laredo-Robinson Trio and violist Cynthia Phelps.The piece addresses the events of September 11, 2001. Tonight and tomorrow, 8 p.m., 92nd Street Y, 1395 Lexington Ave., between 91st and 92nd streets, 212-415-5500, $35.
NATIONAL NOTES The National Symphony Orchestra, conducted by musical director Leonard Slatkin, performs with guest pianist Emanuel Ax.The first program includes work by Barber and Rachmaninoff; the next evening includes Beethoven’s Piano Concerto No.3,among other works. Thursday and Friday, 8 p.m., Carnegie Hall, 881 Seventh Ave. at 57th Street, 212-247-7800, $24-$85.
TO AMERICA FROM NORWAY Norwegian singer-songwriter Sondre Lerche brings his folksy tunes to the Bowery Ballroom. Leona Naess opens. Thursday, 8 p.m. doors open, Bowery Ballroom, 6 Delancey St. at Bowery, 212-533-2111, $20. Note: 18 and older.