Sounds like a good test.I can suggest a much easier way… I believe almost everyone here is familiar with Pink Floyd’s ‘Animals’.
Using an excellent source (my reference is a British 1980s pressing LP , but it can be a SACD as well ) , play the track ‘ Dogs’.. around 5mins 30s into the track , with acoustic guitar playing , and sound of a dog barking from the phantom centre , there is a sudden drum kick , followed by Gilmour’s piercing electric guitar which should fill your entire soundstage wall to wall , floor to ceiling.
If you have achieved audio gear-nirvana, that moment ought to knock your socks off even if you have never heard of Floyd before. If it elicits a ‘well ,‘it’s good but nothing remarkable’ or a ‘meh’ , then you are not there yet (with your gear) ….
The question that has been bothering me is if a set up plays this (Dogs) song really well, would it play other types of music as wonderfully too?
My current set up plays sparsely recorded music with vocals and a couple of instruments fabulously well and struggles with complex, densely recorded music (grunge- death metal) badly.
Or maybe some generes are wrongly classified as music
This has been true often in my case.most people upgrade because they're dissatisfied with the sound (but don't understand the root cause)