Relating capturing the soul of the music to sound quality is only relevant to audiophiles.
Young ears, for instance, are, in general, oblivious to the digital artifacts that some audiophiles find so offensive, unless the young person in question has trained his ears to hear these artifacts and judge them to be objectionable.
Sophisticated musicians, not rock, hiphop, etc., must train their ears to be able to play proper pitch, tone, etc. To other people, this practice will interfere with your finding the soul of the music.
Most people my age can probably recall being lost in the music coming out of a cheap AM radio with a cracked speaker, blissfully singing along, dancing, or playing air guitar. Distortion measurements were probably in the 25 - 50% range, but man, did that music sound good.
I have no doubt that the golden eared, analog only, perfectionists' systems sound better than mine, way better. But I don't want to have to buy a system like that, tweak it constantly, hunt down audiophile recordings (old or new), wash them a couple of times and turn off the refrigerator and A/C to enjoy my music. If you enjoy doing all that though, it's fine with me.
I want to be able to listen past digital grunge, or analog grunge for that matter, and feel the joy or sadness or anger or whatever, expressed in the music. I need a much better system now to be able to do that than I used to, but I don't want to make it harder than it has to be because I have trained myself to be a human distortion detector.
So no offense to the Lp fans, but it is possible to get to the soul of the music by listening to cds. In many cases it may be easier.