Helen Tobias - Duesberg (11/06/1919 - 04/02/2010), a female Estonian-American composer. Duesberg studied in Estonia from 1937-43 and in Berlin from 1943-47. Mother of the famous pianist Maya Roos. Helen Tobias was born in New York City. Tobias was the youngest daughter of Estonian composer, Rudolf Tobias. She studied music composition at the Tallinn Conservatoire, which is now known as the Estonian Academy of Music and Theatre, under Artur Kapp and Heino Eller. She also received training from August Topman and graduated from the Conservatoire as an organist in 1943. She later studied at the Berlin University of Music as well. Tobias-Duesberg moved to the United States from Estonia, which was then part of the Soviet Union, in 1951. She began composing music and performing at several churches in New York City. She composed chamber, vocal and symphonic pieces, the most famous of which may be Requiem, which was composed for orchestra, mixed choir and soloists. Helen Tobias-Duesberg died in Savannah, Georgia, on February 4, 2010, at the age of 90.