My father Nikolai Kapustin (1937-2020), a renowned composer, was born in Horlivka, Ukraine. He was of mixed Jewish-Russian ancestry: his father Girsh Kapustin was Jewish and his mother Klavdia Kapustina was Russian. He wrote over 100 pieces for orchestra, piano, and other instruments. His music combines classical forms and jazz idioms. Schott Music is the official publisher of all his works, you may contact them if you need to purchase or rent scores. A wealth of information about my father is contained in a book "Conversations with Nikolai Kapustin" by Yana Tyulkova.