(oops) be respected, not the whims of the performer. But she performed them on a modern piano, saying that what variety of keyboard they were performed on was relatively unimportant.
3) Last year I attended a series of workshops on performing arts in the medieval era, and today,at Pennsic (the Big Society for Creative Anachronism event hereabouts). The salient point for this post is that if performers for a 21st century audience did a set of authentic medieval illusions (as far as can be documented), the audience would be bored stiff, if they stayed around in the first place.