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 Firebird While hunting in the forest, he strays into the magical realm of Koschei the Immortal, whose immortality is preserved by keeping his soul in a magic egg hidden in a casket. Ivan chases and captures the Firebird and is about to kill her; she begs for her life and he spares her. As a token of thanks, she offers him an enchanted feather that he can use to summon her should he be in dire need. Prince Ivan then meets thirteen princesses who are under the spell of Koschei and falls in love with one of them. The next day,