Classical music for me is predominately piano or piano with orchestra, not much violin with orchestra or piano-violin and lil-to-nothin for opera.
Solo piano is another level that have to be near-perfectly recorded. That is the case that I would not listen if piano is compromised!
On the other hand, I have bootleg of Pink Floyd "Live In Pompeii" that I would listen a lot more often than perfectly recorded and mastered DSOM or The Wall.