This November, Concerto Köln alongside conductor Kent Nagano will present historically-informed performances of Wagner’s “Das Rheingold.” The performances come as part of their “Wagner Readings” project, which was started in 2017 and began to develop this artistic/scientific approach to the tetralogy, bringing together scholars of multiple disciplines. The first concert will be held on Nov. 18 at the Kölner Philharmonie, {…}