"Léner Quartet" . . . . . . . "chamber music performance" . "Entered from New York Times concert listing and review (\"Concert Programs for Current Week,\" Oct. 19, 1930, pg. 121; \"Lener Quartet Gives Artistic Concert,\" Oct. 21, 1930, pg. 38), program calendars, and advertisement in 10/17/1930 program." . "1930-10-20T20:30:00"^^ .