This Friday from 7 PM, Sala Radio hosts the National Radio Orchestra, who brings a rare repertory, led by the conductor Julien Salemkour (photo). The evening will start with “ Transfigured night,” op.4 of A. Schönberg, a work considered at the boarder between the one of Wagner and the one of Brahms. The second part of the concert will present the second act of the opera Tristan and Isolde by Richard Wagner, opera in concert sang by the tenor in Tristan role and the soprano Barbara Krieger, who will perform as Isolde, the mezzosoprano Aura Twarowska as Brangäne, the baritone Daniel Pannermayr as Marke and the tenor Adrian Dumitru as Melot.