"Ruggero Leoncavallo and La Scala Orchestra" . . . . . . . . "symphony orchestra performance" . . "U.S. Debut of Ruggero Leoncavallo\r\nSee articles and reviews in the New-York Tribune and New York Evening World:\r\nNew-York tribune. [volume] (New York [N.Y.]), 07 Oct. 1906. Chronicling America: Historic American Newspapers. Lib. of Congress. Link to article (column 4, \"Music Notes\")\r\nNew-York tribune. [volume] (New York [N.Y.]), 09 Oct. 1906. Chronicling America: Historic American Newspapers. Lib. of Congress. Link to review (column 4, \"Music\")\r\nThe evening world. [volume] (New York, N.Y.), 09 Oct. 1906. Chronicling America: Historic American Newspapers. Lib. of Congress. Link to review (column 2, \"Leoncavallo Bows to an American Audience as Conductor and Composer\")\r\nU.S. PREMIERE of Leoncavallo's AVE MARIA\r\nWORLD PREMIERE of Leoncavallo's VIVA L'AMERICA" . . . . . . "1906-10-08T20:00:00"^^ . . . . .