Vyshnegradsky (Vishnegradsky) (Wyschnegradsky), Ivan Aleksandrovich 4/16.may.1893-29.sep.1979 Russia, St Petersburg - France, Paris
son of a banker, first studied law but turned to music, 1911-1914 studied composition with Nikolay Sokolov, 1920 emigrated to France Paris, experimented with quarter tone instruments all his life, but his music was not really 'discovered' until after his death