Trio Elvetico New York Debut Entered from booking ledger and New York Times concert listing and review. The correct program order is uncertain. “Arts and Leisure Guide.” New York Times [New York, N.Y., United States], 9 Feb. 1975, p. 103. Arts & Leisure. Hughes, Allen. “Music in Review: Trio Elvetico In Local Debut.” New York Times [New York, N.Y., United States], 16 Feb. 1975, p. 64. 1975-02-14T20:00:00