Instruct: Classify Amazon reviews into positive or negative sentiment
Query: awful sound, callas showing decline

Callas is beginning to show serious vocal problem here. And I'm not a fan of Alfredo Kraus. To add to all that, the sound is unacceptable.This only deserve 2 stars because Callas is here, without it, it would be worthless. The five star Traviata is hands down the fab performance of the underrated Cotrubas/Domingo/Milnes recording. That is what Traviata is all about. Cotrubas sings the best sempre libera around, even better than that overrated singer from Australia, and far better than La Divina at this point of her career.