Question: Iphigénie en Tauride was an operat by which classical composer?
Sentence (from "Iphigénie en Tauride discography"): This is a discography of Iphigénie en Tauride, an opera by Christoph Willibald Gluck, first performed at the Paris Opéra on May 18, 1779.
Relevant evidence: Yes