the programme of the first movement is—"roughly"—that "all life is an unbroken alternation of hard reality with swiftly passing dreams and visions of happiness ...". He went on: "No haven exists ... Drift upon that sea until it engulfs and submerges you in its depths". The composer's description of the symphony's opening fanfare as a metaphor for "Fate" becomes more telling in the context of a letter he wrote Sergei Taneyev. He wrote Taneyev that the Fourth Symphony was both program music and a reflection of Beethoven's Fifth Symphony in the central idea of its program. Keller has mentioned a parallel between the four-note motif which opens Beethoven's Fifth and the fanfare at the outset of Tchaikovsky's Fourth. Like Beethoven, Tchaikovsky uses his fanfare as a structural marker. Moreover, because of both the length and unorthodox form of the symphony, he may have felt using such a marker was a musical necessity. Form The symphony is in four movements: A typical performance has a duration of about 40 minutes. Instrumentation The symphony is scored for piccolo, 2 flutes, 2 oboes, 2 clarinets, 2 bassoons, 4 horns, 2 trumpets, 3 trombones, tuba, timpani, bass drum, cymbals, triangle, and strings. Structure Challenges The Fourth Symphony is where Tchaikovsky's struggles with Western sonata form came to a head. In some ways he was not alone. The Romantics in general were never natural symphonists because music was to them primarily evocative and biographical. Western musical form, as developed primarily by Germanic composers, was analytical and architectural; it simply was not designed to handle the personal emotions the Romantics wished to express. The difference with Tchaikovsky was that while the other Romantics remained generally autobiographical in what they wanted to express, he became more specific and, consequently, more intense. In his first three symphonies he had striven to stay within strict Western form. The turbulent changes in his personal life, including his marital crisis, now led him to write music so strongly personal and expressive that structural matters could not stay as they had been. Beginning with the Fourth Symphony, the symphony served as a human document—dramatic, autobiographical, concerned not with everyday things but with things psychological. This was because Tchaikovsky's creative impulses had become unprecedentedly personal, urgent, capable of enormous expressive forcefulness, even violence. Along with this emotional urgency came an unprecedented flow of melody. Here, Tchaikovsky developed his gift for tunefulness more freely