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 poems (Liszt) him." These ideas were not only connected with Liszt's personal problems as an artist, but they also coincided with explicit problems being addressed by writers and painters of the era. In developing the symphonic poem, Liszt "satisfied three of the principal aspirations of 19th century music: to relate music to the world outside, to integrate multi-movement forms ... and to elevate instrumental programme music to a level higher than that of opera, the genre previously regarded as the highest mode of musical expression." In fulfilling these needs, the symphonic poems played a major role, widening the scope and expressive power