Muck (1859-1940) had a successful international career that included leadership of the Boston Symphony and a reputation as a leading Wagnerian. Though a Bayreuth mainstay for decades, he left a meager recorded legacy. Along with his 1927 recording of excerpts from Parsifal, also available on Naxos, this disc contains nearly all his electrical recordings. But don't let the dates--1927 to 1929--deter you. Sure, Wagner requires sound that's adequate to the dynamics and tonal splendor of his large orchestra, but the work of transfer engineer Mark Obert-Thorn on these ancient recordings is nothing short of miraculous. This sound here is akin to circa 1950 mono, and the performances have a spaciousness, structural integrity, and nobility that elevate them above the routine. Muck occupies an interpretive place midway between the emotional and spiritual generosity of a Furtwängler and the intensity of a Toscanini; these are straightforward, stylish readings enlivened with little personal touches that bring the music to life. Here's a rare chance to hear Wagner from a conductor who grew up when this music was excitingly new. --Dan Davis