I’ve seen it perhaps twice in my life and never consciously listened to it except to discover that I know every note. Others, I believe, have had the same experience.
Callas, Palacio de Bellas Artes, Mexico City, 1952, with Giuseppe Di Stefano, Mugnai conducting:
Callas, La Scala, Milan, 1955 or ’56, with Giuseppe Di Stefano, Giulini conducting:
Callas, Teatro Nacional de São Carlos, Lisbon, 1958, with Alfredo Kraus, Ghione conducting (the best according to some):
There are others.
Callas’s voice declined very early. Her best days were over long before she was forty.
In 1853 the symphony was dead, chamber music in a post-Schumann, pre-Brahms twilight, and religious music at a low ebb. Opera carried the torch. Excuse the mixed metaphors.