I think the only true reference is comparing to purely acoustical live performances (classical music, chamber, orchestra, opera, rarely jazz in small rooms). Even for those, sound varies a considerably based on room/concert hall acoustics and listening position. I listen regularly to this kind of music (unfortunately not since this strange virus is impacting our lives :-() in different concert venues. I upgraded my system considerably last year (MBL 101 speakers, Electrocompaniet Nemo monos). Since then I really also enjoy listening to opera recordings. For me they are a really good reference as you have voices, all sound colors of instruments of an orchestra, and room acoustics with the singers on the huge stage behind the orchestra (for live recordings). Extremely hard to match are choirs. But for all of that, without really being able to describe in words, you can tell whether you get closer. It just sounds more "natural" or "realistic".
I found that the sound of live concerts with amplification is not what I am strieving for in my system. The live perception depends heavily on microphones, mixing, PA system, and can be anything from decent to terrible. It is never "natural". And even if you have a recording of the same life concert, it will be a totally different sound.
The funny thing is that even if I try to work towards coming closer to live acoustic sound, things become more "natural" and inspiring to listen for "modern" music (rock, jazz, ...) as well. But only if recording, mixing, mastering is done well. Bad recordings are unbearable now.
I found that the sound of live concerts with amplification is not what I am strieving for in my system. The live perception depends heavily on microphones, mixing, PA system, and can be anything from decent to terrible. It is never "natural". And even if you have a recording of the same life concert, it will be a totally different sound.
The funny thing is that even if I try to work towards coming closer to live acoustic sound, things become more "natural" and inspiring to listen for "modern" music (rock, jazz, ...) as well. But only if recording, mixing, mastering is done well. Bad recordings are unbearable now.