In a far corner of St. Isaac's Square in Leningrad, overshadowed by the gold-domed cupola of the city's most famous cathedral, stands the Institute of Cinema, Theatre and Music. Few foreign visitors to Leningrad realize that on the first floor of that building is contained one of the largest collection of folk instruments in the world, a collection which, though primarily devoted to the Soviet Union, nevertheless contains instruments from Western Europe, China, India and Japan.