Alexander Nikolayevich Scriabin (Russian: Алекса́ндр Никола́евич Скря́бин; 6 January 1872 – 27 April 1915) was a Russian composer and pianist. Scriabin, who was influenced by Frédéric Chopin, composed early works that are characterised by tonal language. Later in his career, independently of Arnold Schoenberg, Scriabin developed a substantially atonal and much more dissonant musical system. Scriabin was influenced by synesthesia, and associated colours with the various harmonic tones of his atonal scale, while his colour-coded circle of fifths was also influenced by theosophy. More: en.wikipedia.org.