On 17 May 2002 the master of the art form known as musical color-painting, Yury Pravdyuk, passed away in Kharkov, Ukraine. Pravdyuk was the inventor of an ingeniously simple instrument for color-painters and the author of approximately 150 inimitable color-dynamic compositions to accompany the music of composers of different eras and peoples. How the idea of musical color-painting was born and Pravdyuk's creative path is the subject of the present article by one who had been a close assistant of Pravdyuk since 1965.