. . . "Entered from New York Times concert listing and review and booking ledger.\r\n\"Entertainment Events Today.\" New York Times (1923-Current file): 42. Oct 21 1975. ProQuest. Web. 21 May 2014.\r\nEricson, Raymond. \"Music in Review.\" New York Times (1923-Current file): 57. Oct 26 1975. ProQuest. Web. 21 May 2014.\r\nWORLD PREMIERE of John Lambert's PERSONA" . . . . "chamber music performance" . "Omega Guitar Quartet" . . . "1975-10-21T20:00:00"^^ . . .