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) artist or small groups would not be "covered up" by the mass sound of the orchestra and were obvious to everyone. These aspects of the symphonic poem demanded players to have superior caliber, perfect intonation, keen ears and knowledge of the roles of their orchestra members. The complexity of the symphonic poems may have been one reason that Liszt urged other conductors to "hold aloof" from the works until they were prepared to deal with the challenges. Most orchestras of small towns at that time were not capable of meeting the demands of this music. Contemporary orchestras also faced another