Asa, actually most of the people I know who aim for an accurate frequency response do not do so in the interest of excessive detail. Rather, they find audiophiles perverse because audiophiles tolerate frequency response aberrations in the midrange and tend to like an elevated high end with lots of detail, e.g., the early famously popular moving coil cartridges. Pros who strive for accuracy tend to use the live concert hall as a model. In electronics, they want complete accuracy. In speakers, they aim for a flat frequency response from bass through upper midrange, and a somewhat downward sloping upper end to approximate what happens in real life. That sort of accuracy is generally musical. Speakers that are ruler flat in the treble off axis as well as on can be sort of relentless in real world rooms.
The members of the accuracy school with whom I am familiar regard excessive detail as unnatural and an inaccurate representation of live music. It's in the midrange that accuracy is paramount.
There are people who like amps that are demonstrably inaccurate in the bass and midrange. Maybe because their speakers are inaccurate in some complementary way, or maybe they just like a mellow sound. I dont know.
It's an old-fashioned idea, one that has been ridiculed in Stereophile, but I want my electronic components to do nothing to the signal but pass it along. Any deviation from a flat frequency response, and distortion, and character like grain or hardness (which I think can be explained by some small deviations from a perfect frequency reponse), I don't like - unless it's in a portion of the frequency spectrum where it doesnt really hurt, e.g., a little added warmth, a little less presence giving more of a sense of depth or outside of my hearing range. I think accuracy is important, because accurate components allow designers and users to focus on what needs to be improved. This idea that everything sounds different and needs to be matched with their components synergistically is a saleman's boon, and a bore. A perfectly accurate system still needs help with room interaction.
Yet, we fill in the blanks, and tolerate, as you suggest, a variety of inaccuracies, mostly subtractive deficiencies rather than additive. (It's hard to ignore an excess of energy in any part of the frequency range, except maybe the mid bass. It's hard to ignore noise and distortion components.) We are especially adept at filling-in, completing patterns, finishing sentences, and I think that the part of our brain that processes sounds does the same thing.
Now to your really interesting McLuhan-esque idea, an experience or replication of the absolute sound through the listener's interaction with his system. We know that stereo can't recreate the live event, it can only make a suggestion (Like Michelangelo's last works in marble, which some might think unfinished). Yet, some of us sit there and feel very much like we are in the presence of our favorite performers.
That's my objective.
I think I agree with you that musical components, good components, are those that "sufficiently catalyze the mind" to complete the pattern. And I would add that do not give false cues that might lead to an unrealistic picture.
Regards,
Paul