Ron,
I understand the points you are making, and probably you are right with the above statement, that's how people view things.
Yet while it is obvious that digital, even the cheapest CD playback, can reproduce test tones much more accurately than vinyl, my claim is:
Most digital does NOT accurately reproduce what is on the mastertape.
The reason for this is that the mastertape of recorded musical performances contains not test tones but, well, music. Test tones are one thing, complex harmonics of instrumental timbres, which constitute music, quite another.
Some instrumental or vocal timbres are more challenging for digital than others. The worst performance of digital in my view is not even on solo violin tones, but on tenor and baritone saxophone, which also produce harmonically very rich and complex sounds. While analog has no problem with those timbres, almost all digital that I have heard, including mine, fails on saxophone -- quite badly, in fact. On my Berkeley Alpha 2 DAC, which while not being SOTA is quite highly regarded, these timbres are thin and harmonically emasculated. On other DACs the same sax recordings are not quite as thin sounding, but still harmonically poor.
There is one exception, the dCS Rossini, which was extraordinarily convincing on tenor and baritone saxophone timbres (I haven't heard saxophone on the dCS Vivaldi). The Berkeley Reference DAC was the only other DAC that came relatively close, but in my view did not quite make it in comparison. So digital CAN do it (even on Redbook CD!) when correctly implemented, but most digital cannot.
This problem must have to do with the complexity of the timbral spectrum of instruments. On other timbres my DAC does not sound thin and harmonically poor at all. I find, for example, the gutsy sounds of trombone and bass tuba very convincing through my DAC on my system.