The Rite of Spring composer Julius Harrison acknowledged the uniqueness of the work negatively: it demonstrated Stravinsky's "abhorrence of everything for which music has stood these many centuries ... all human endeavour and progress are being swept aside to make room for hideous sounds ..." In "The Firebird", Stravinsky had begun to experiment with bitonality (the use of two different keys simultaneously). He took this technique further in "Petrushka", but reserved its full effect for "The Rite" where, as the analyst E.W. White explains, he "pushed [it] to its logical conclusion". White also observes the music's complex metrical character, with combinations of duple and
The Rite of Spring a series of flute trills that usher in the "Spring Rounds", in which a slow and laborious theme gradually rises to a dissonant fortissimo, a "ghastly caricature" of the episode's main tune. Brass and percussion predominate as the "Ritual of the Rival Tribes" begins. A tune emerges on tenor and bass tubas, leading after much repetition to the entry of the Sage's procession. The music then comes to a virtual halt, "bleached free of colour" (Hill), as the Sage blesses the earth. The "Dance of the Earth" then begins, bringing Part I to a close in a series of phrases