No guarda relación exactamente con el tema, pero pienso que a muchos les resultará curioso el siguiente artículo, en especial a los amantes de la tetralogía wagneriana y de la trilogía (ahora hexalogía) de Star Wars. Parte de ciertas premisas bastante discutibles, pero el contenido es cuando menos curioso.

Por lo demás, las semejanzas entre el anillo de los Nibelungos y el señor de los anillos son más que notables. Tolkien no fue un innovador, precisamente.

The New Yorker, Dec 22, 2003 v79 i40 p161

THE RING AND THE RINGS. Alex Ross.
Full Text: COPYRIGHT 2003 All rights reserved. Reproduced by permission of The Condé Nast Publications Inc.

Early in "The Fellowship of the Ring," the first film in Peter Jackson's monumental "Lord of the Rings" trilogy, the wizard Gandalf finds himself alone in a room with the trinket that could end the world. It lies gleaming on the floor, and Gandalf regards it with an attitude of fascinated fear. The audience feels a chill that neither Jackson's vertiginous camera angles nor Ian McKellen's arching eyebrows can fully explain. The Ring of Power extends its grip through the medium of music, which is the work of the gifted film composer Howard Shore. In the preceding scenes, an overview of the habits of hobbits, Shore's music had an English-pastoral, dance-around-the-Maypole air, but when the ring begins to do its work a Wagnerian tinge creeps in--fittingly, since "The Lord of the Rings" dwells in the shadow of Wagner's even more monumental "Ring of the Nibelung." J. R. R. Tolkien's fans have long maintained a certain conspiracy of silence concerning Wagner, but there is no point in denying his influence, not when characters deliver lines like "Ride to ruin and the world's ending!"--Brunnhilde condensed to seven words.

Shore manages the admirable feat of summoning up a Wagnerian atmosphere without copying the original. He knows the science of harmonic dread. First, he lets loose an army of minor triads, or three-note chords in the minor mode. They immediately cast a shadow over the major-key music of the happy hobbits. (A digression for those who skipped grade-school music class or never had one: Why does the minor chord make the heart hang heavy? First, you have to understand why the major triad, its fair-haired companion, sounds "bright." It is based on the spectrum of notes that arise naturally from a vibrating string. If you pluck a C and then divide the string in half, in thirds, in fourths, and so on, you will hear one by one the clean notes that spell C major. Wagner's "Ring" begins with a demonstration: from one deep note, wave upon wave of majestic harmony flows. The C-minor triad, however, has a more obscure connection to "natural" sound. The middle note comes from much higher in the overtone series. It sets up grim vibrations in the mind.)