Symphonic poem Tchaikovsky's work as "Isle of the Dead" (1909) does its independence from it. A similar debt to his teacher Rimsky-Korsakov imbues Igor Stravinsky's "The Song of the Nightingale", excerpted from his opera "The Nightingale". Alexander Scriabin's "The Poem of Ecstasy" (1905–08) and "" (1908–10), in their projection of an egocentric theosophic world unequalled in other symphonic poems, are notable for their detail and advanced harmonic idiom. Socialist realism in the Soviet Union allowed program music to survive longer there than in western Europe, as typified by Dmitri Shostakovich's symphonic poem "October" (1967). While France was less concerned than other countries
Symphonic poem most basic principles—the symphony's traditional claims of weight, musical abstraction, gravitas and formal dialogue with seminal works of the past; and the tone poem's structural innovation and spontaneity, identifiable poetic content and inventive sonority. However, the stylistic distinction between symphony, "fantasy" and tone poem in Sibelius's late works becomes blurred since ideas first sketched for one piece ended up in another. One of Sibelius's greatest works, Finlandia, focuses on Finnish independence. He wrote it in 1901 and added choral lyrics - the Finlandia Hymn by Veikko Antero Koskenniemi - to the central part after Finland became independent. The symphonic poem