The Rite of Spring the winter of 1909–10, in close association with Fokine who was choreographing "The Firebird". During this period Stravinsky made the acquaintance of Nijinsky who, although not dancing in the ballet, was a keen observer of its development. Stravinsky was uncomplimentary when recording his first impressions of the dancer, observing that he seemed immature and gauche for his age (he was 21). On the other hand, Stravinsky found Diaghilev an inspiration, "the very essence of a great personality". "The Firebird" was premiered on 25 June 1910, with Tamara Karsavina in the main role, and was a great public success. This ensured
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