This 1996 New York Times piece by the awesome (literally) music scholar and critic Richard Taruskin (a piece included in his splendid 2009 collection The Danger of Music and Other Anti-Utopian Essays) is perhaps the most devastating, sly, and intellectually satisfying putdown of Roger Norrington's H.I.P. conceits you'll ever have the pleasure of reading.
It had to happen. As surely as the irresistible force had to meet the immovable object, as surely as Frankenstein had to meet the Wolfman [sic], Roger Norrington and his London Classical Players had to confront Richard Wagner, the fountainhead of everything against which Mr. Norrington, and all of Early Music, have been in constant zealous revolt. The resulting CD (EMI Classics 5 55479 2), which contains the Rienzi Overture, the Prelude to Act III of Lohengrin, the Prelude and "Liebestod" from Tristan und Isolde, the Meistersinger Prelude, the Siegfried Idyll and the Parsifal Prelude, is one of the most fascinating recordings of the year just past, and one of the most important. Which is not necessarily to imply that the performances it preserves are any good.Read the whole thing.