Octets Percussion -- See Percussion ensembles Here are entered compositions not in a specific form or of a specific type for two or more percussionists, each playing one or more different percussion instruments. Compositions for one percussionist playing two or more different percussion instruments are entered under Percussion music. --headings for forms and types of music that include "percussion ensemble" and headings with medium of performance that include "percussion ensemble"
October Revolution 1917 1921 -- See Soviet Union History Revolution, 1917-1921 Here are entered works on the revolution and subsequent civil war that brought the Bolsheviks to power and resulted in the formation of the Soviet Union. Works on the revolutionary period in the Russian Republic are entered under Russia (Federation)--History--Revolution, 1917-1921.