. . . . "The Echo Singing Society, Inc. of New York City, No.213, Polish Singers Alliance of America, presents its 75th Anniversary Concert\r\n\r\n" . . "Echo Singing Society of New York City 75th Anniversary Concert" . . . "1978-04-08T14:00:00"^^ . . . . . . . . . . . . . . . "choir performance" . . . . . "multiple performances" . . . . . .