No long story about what's wrong with current digital thoughts (as compared to analog transparency and high sound fidelity) , just an observation that had me occupied long ago already.T.
Your OP is an interesting (and not unexpected) read. Your quest for improvements is certainly welcome. Things can and will be improved due to efforts like yours.
I do question this first statement. What analog recording medium and/or playback medium is truly transparent?
Tape inherently has tape hiss, it may be small but it exists. There is a noise floor, all the specs for microphones that I have seen include a self-noise specification so recording is inherently noisy.
The frequencies generated by tape hiss can and do interact with frequencies being recorded, resulting in new harmonics created.
Only a few humans (if any) have the luxury of only listening to first generation tape recordings on the original 2" tape running 30 i.p.s..
I've heard that, once. It sounded amazing.
As transfer media, both vinyl and tape have background noise, adding noise to noise (to noise).
Obviously we've no control over choice of playback but it is likely not to improve things.
I've a friend who spent tens of thousands of dollars on hi-fi gear. It makes a tiny piece of dust in the groove of the record really stand out clearly.
It also makes radio broadcast sound like it sounds, very compressed.
Short of playing live music in a great sounding isolation room on acoustic instruments - which is by far the best sound - how do we distribute this "analog transparency and high sound fidelity"?
I am truly curious and grateful for any answer you may provide.