The once-venerable competition usedt be on top. Now, not so much. “Around 200 young pianists, violinists, cellists and singers from 34 countries will perform over the next two weeks before juries of top musicians in Moscow’s grand but run-down Conservatory, hoping to become the virtuosos of the future. Organizers hope that more entrants, increased sponsorship, open voting and more prestigious juries will return some of the luster the four-yearly competition enjoyed prior to the collapse of the Soviet Union in 1991.”