Is it unthinkable that a musician can learn more about how music works from listening to errors than from listening to right notes all the time?
If so, then I certainly have wasted a lot of time learning how to listen to errors!
But in the process I have learned how great a pull musical tone exerts upon the subconscious, so great that it re-routes right notes turning them into insightful wrong notes, insightful because they reveal the difference between pro forma logic and the non sequitur that distinguishes genius from same-old.
Recently a young composer bemoaned to me the fact that, though many professionals could just sit down and sight-read his compositions perfectly, they had nothing to say about them. No comment. So why write?