from :
http://www.filmsite.org/shaw2.html
......
To Andy's amazement after six years of request letters, boxes of books ("a charitable donation") are delivered to the Supervisor's office accompanied by a check for two hundred dollars from the State Comptroller's Office. One of the guards, Wiley (Don McManus) grins and congratulates him: "Good for you, Andy." When the guards leave momentarily, Andy savors his victory - he leafs through a stack of used record albums in a wooden crate and finds a boxed set of Mozart's opera "The Marriage of Figaro" - Le Nozze de Figaro. [Symbolically, The Marriage of Figaro was about a valet/servant Figaro who outwitted his master Count Almaviva.] In another redemptive act similar to the one on the rooftop, he places the record Duettino: Sull'Aria on a phonograph player in the office, locks the doors and broadcasts the opera on the P.A. system throughout the entire prison to share a moment of freedom and make the prison walls dissolve.
etc etc etc
You do not hear "La Callas"!. it is the 1968 Karl Bohm version starring Gundula Janowitz, Hermann Prey, Edith Mathis, Tatiana Troyanos and Dietrich Fischer Dieskau. We hear the voices of Gundula Janowitz and Edith Mathis in "The letter duett"
http://www.amazon.com/gp/product/B00000 ... nce&n=5174 You can listen to fragments. Click on disc 2 for all tracks. It is nr 28
28. Le Nozze Di Figaro - Act 3: 20. Duettino: ('Sull'aria...') - 'Che soave zeffiretto'
Ei già il resto capirà, certo, certo il capirà. Canzonetta sull’aria...
Che soave zeffiretto... questa sera spirerà... sotto i pini del boschetto... Ei già il resto capirà... Certo, certo il capirà, il capirà.
in English
He will understand the rest. Certainly he will understand it. A little song on the breeze... How gentle is the zephir... that this evening moves the air... under the pine trees in the woods... And he will understand the rest... Oh, yes, he will certainly understand the rest.
.. but my odd maria callas gues, was just a wrong 