(Photo credit: ©EnricoNawrath) In preparation for the new “Parsifal” at Bayreuth last year, one may have harbored preconceived doubts as to the very idea regarding the use of Augmented Reality eyeglasses. After attending this year’s performances, the doubts lingered; and although this production may not be considered a negative adventure per se, one may not view this experiment as a {…}