I inherited a pristine LP of Farrell doing it. Callas of course is peerless, but Farrell is on fire, sings with great beauty and is very effective in the role. Her voice is like a volcano at times. It really requires a real dramatic soprano to do the part justice. It is like Norma without the coloratura. There is a lot of beautiful music in it and that "De tuoi figli" ( sp?) that Medea sings early on is so beautifully written- I could listen to it over and over. Farrell handles the low passages well, though I am sure Callas takes them to another level. You must be secure down low for maximum impact in this role I think. It just doesn't appear to be done much at all after Maria sang it.