This Russian composer and theorist was also a professor of harmony and orchestration on the Moscow Conservatory and, later, Saratoff Conservatory. Conus have been students of Arensky and Taneieff. His compositions had been primarily orchestral parts that ranged from symphonic poems to ballets and concertos. Conus’ theoretical functions contended with analyses via meter and framework. His legacy carries a “Manual of Tranquility” and “1001 Exercises in Musical Theory”.