Entered from booking ledger and New York Times concert listing. According to the ledger, the performance was to include strings and harpsichord, but neither the ledger nor the listing identify the assisting performers. The correct program order is uncertain. WORLD PREMIERE of John Harbison's AMAZING GRACE NEW YORK PREMIERE of Gilbert Amy's JEUX “Theater: Arts and Leisure Guide.” New York Times [New York, N.Y., United States], 5 Jan. 1975, p. D3. Arts & Leisure.