"Nielsen perfectly recreated the masterful Wagnerian world in one of his richest and, above all, most romantic scores... [He] gave us a version full of nuances, with marked contrasts and pending the details and the stage. A classic version but without mannerisms, looking for the essence of a music... I would venture to say that the BOS was in a state of grace in ...undoubtedly one of the best nights in the Euskalduna pit, with a sound that had nothing to envy to what can be heard in the best Central European theatres."
plateamagazine.com

"One of the greatest achievements of the conductor Erik Nielsen was to find a perfect balance between the orchestra's dense and powerful sound and all the voices... [He] gave an excellent interpretation of the score and managed the miracle of not hiding a single voice on stage while keeping the orchestra at its most sublime during Wagner’s great climactic moments."
operawire.com

"Erik Nielsen at the head of a fabulous Bilbao Orkestra Sinfonikoa: thanks to the strenuous but brilliant work of the conductor, attentive to the slightest inflection of the singers, but with a firm control of the orchestra, aware of every motif, color and sound plane and in command of the fluctuating tempi, you could enjoy a version with all the quality, richness, color and solidity that Wagner's dense and intense music requires."
operaactual.com

"Erik Nielsen has confirmed his talent as a Wagnerian conductor...He gave us a magnificent third act, which I hope to have the opportunity to hear again under his direction." 
mundoclasico.com