often ending up in a different key than the one in which the song began. This can produce a feeling of elusiveness, a lack of definition or of logical progression in the harmony. Even when stylized by The Five, this quality can make Russian music sound very different from the tonal structures of the West. Heterophony A melody is simultaneously rendered by two or more performers in different variations. This is improvised by the singers until the end, when the song reverts to a single melodic line. Parallel fifths, fourths, and thirds The effect lends Russian music a raw sonority missing entirely from the comparatively polished harmonies of Western music. The Five also adopted a series of harmonic devices to create a distinct "Russian" style and color different from Western music. This "exotic" styling of "Russia" was not just self-conscious but entirely invented. None of these devices were actually used in Russian folk or church music: Whole tone scale Although Glinka did not invent this scale, his application of it in the opera Ruslan and Lyudmila (1842) — most recognizable at the end of the festive overture — provided a characteristic harmonic and melodic device. This scale in "Russian" works often suggests evil or ominous personages or situations. It was used by all the major composers from Tchaikovsky (the appearance of the Countess's ghost in The Queen of Spades) to Rimsky-Korsakov (in all his magic-story operas—Sadko, Kashchey the Deathless and The Invisible City of Kitezh). Claude Debussy also uses this scale in his music, taking this, among many things, from the Russians. Later it became a standard device in horror-movie scores. The Russian submediant Also linked to Glinka's Ruslan, this is a harmonic pattern (in major mode) in which one upper part proceeds from the dominant pitch chromatically to the submediant while the other harmony parts remain constant. The most basic form of this pattern can be shown as follows (beginning with typical tonic): root-position tonic triad → root-position augmented tonic triad → 1st inversion submediant minor triad. A famous example of the Russian submediant occurs in the very opening bars of the third movement of Rimsky-Korsakov's Scheherezade. Diminished or octatonic scale Rimsky-Korsakov first used this in his symphonic poem Sadko in 1867. This scale became a sort of Russian calling-card — a leitmotif of magic and menace used not just by Rimsky-Korsakov but all of his followers, above all