Joseph Yasser
Joseph Yasser (April 16, 1893 – September 6, 1981) was a Russian–American organist, music theorist, author, and musicologist. He authored A Theory of Evolving Tonality (1932) and advocated progressive equal temperaments. He wrote music in 19edo. He advocated the use of the decitone, centitone, and millitone to measure musical intervals.
