That's why I have a second system.
I listen to a lot of historical recordings and I cannot listen to them on my primary system. Too revealing.
Box sets I love: The Reiner, Westminster Legacy and the Archive Analogue. All good examples of exemplary sound. And artistry. And we're not talking digital sound here.
A disc I use for testing (read about it by a reviewer) is by Trondheimsolistene 'in folk style.' Grieg and some wonderful contemporary composers.
Of course if I had mono blocks each with their own power conditioners and 70k speakers with a reel to reel playback system and a large room there would be no end to the possibilities of great sound.