Russian	rus	0.1374
scores	scor	0.1374
Congress	congr	0.1374
opera scores	oper scor	0.1374
Congress Library	congr libr	0.1374
MARIINSKY	mariinsk	0.1374
Theatre	theatr	0.1374
collection of opera	collect of oper	0.1374
catalogue	catalogu	0.0497
Mariinsky Theatre	mariinsk theatr	0.0497
music	mus	0.0497
microfilmed	microfilm	0.0497
sides	sid	0.0497
WASHINGTON	washingt	0.0497
Petersburg's	petersburg	0.0497