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 used by Mozart and Haydn. In the final movement of his Ninth Symphony, Beethoven had transformed the theme of the "Ode to Joy" into a Turkish march. Weber and Berlioz had also transformed themes, and Schubert used thematic transformation to bind together the movements of his "Wanderer Fantasy", a work that had a tremendous influence on Liszt. However, Liszt perfected the creation of significantly longer formal structures solely through thematic transformation, not only in the symphonic poems but in others works such as his Second Piano Concerto and his Piano Sonata in B minor. In fact, when a work had