All good comments---everything matters! Reproduced music still, after all this time and effort, sounds very different from live, and undoubtedly will for the remainder of even the youngest of Audiogoners lives. But it can already sound close enough to allow the suspension of disbelief, and for the music to have an emotional impact on the listener. I can be brought to tears by Iris Dements singing even on my computer monitors speakers.
The thing about elements of music and it’s reproduction such as timing, is that we don’t necessarily know how a recording should sound in that regard---what the timing of the original music, as opposed to it’s reproduction, was like. We DO know what a voice free of vowel colorations sounds like, generally speaking. And we know what natural instrumental timbre sounds like. No, we don’t know how well any given recording has captured vocal and instrumental timbres, but ya gotta start somewhere, if that makes any sense.
Reproduced music can sound no better than the quality of it’s recording---source material is still the weakest link in the reproduction of music, in many cases by a wide margin.