The one and only Maria Callas sings the finale to Luigi Cherubini's Medea in Dallas on November 8, 1958. Jon Vickers is Giasone, and Nicola Rescigno conducts.

The audio source used in this video is the best in existence, even better than the widely praised Myto release.
Additionally, I have cleaned up a few clicks, removed some low-frequency hum, and equalized the sound in order to get a fuller, clearer, and more natural sound.

Enjoy!