Some musical reinventions are necessary, while some of them seem to come out of nowhere. Musicians, for all the time we spend thinking about them in abstract terms, are artists, and they by definition cannot recreate what has already been done. Approximations can be made, but there will always be a different creative spark inciting the next work. No amount of careful copying can perfectly replicate what we've already seen or heard. That means at some point every musician has to accommodate change, whether it be a shift in taste, or simply the process of aging and gaining experience.