The Piano Sonata No. 10, Op. 70, was written by Alexander Scriabin in 1913. It was his final work in this form. The piece is highly chromatic and atonal like Scriabin's other late works, although arguably less dissonant than most of his late works. It is characterized by frequent trills and tremolos. It is sometimes called his "Insect Sonata", referring to his words:
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