Alexander Nikolayevich Scriabin (; , ; – ) 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, which accorded with his personal brand of
mysticism. 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. He is considered by some to be the main
Russian Symbolist composer.