Some information on Gotfrid Hasanov, whose Piano Concerto No.1 I posted yesterday below. He also has Wikipedia pages in English, Russian and German.
http://memim.com/gotfrid-hasanov.htmlGotfrid Alidin chwa Gasanov (Russian Готфрид Алиевич Гасанов; born May 1, 1900 in Derbent, † May 28, 1965 in Moscow) was a Soviet musician and composer lesginischer origin.
Gasanov was born on 1 May 1900 in Derbent, his father was Lesgine, his mother German. In 1926 he joined the Leningrad Conservatory in piano and composition. In the same year he taught in Bujnaksk in Dagestan, the first music school. He taught piano in Makhachkala, Samara and Leningrad, and gave solo concerts. 1935 to 1938 and again from 1947 to 1953 he was artistic director of the Song and Dance Ensemble of the Republic of Dagestan; 1943-1947 he was head of the music division of the kumükischen musical theater.
Gasanov regarded as the founder of professional music in Dagestan, he composed numerous Dagestani operas, ballets and musical comedies. The music school in Makhachkala bears his name.His music is also on CD at
http://www.azer.com/aiweb/categories/music/AudioPages/CMA/cma_contents.html