Johannes Georg Hagen

Mozart, (Johann Georg) Leopold

Mozart, (Johann Georg) Leopold (b Augsburg, 1719; d Salzburg, 1787). Ger. composer and violinist. Educated in Augsburg 1727–35. Went to Salzburg Benedictine Univ. 1737. Played in orch. of Prince-Archbishop of Salzburg from 1743, becoming court composer and Vice-Kapellmeister 1762. Father of 2 prodigiously talented children, Wolfgang and Anna, to whose training and exploitation he devoted much time. Comp. many types of mus., incl. famous Toy Symphony (simplified and reduced version of a Cassation in G) and author of influential vn. method, 1756.

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MICHAEL KENNEDY and JOYCE BOURNE. "Mozart, (Johann Georg) Leopold." The Concise Oxford Dictionary of Music. 1996. Encyclopedia.com. 9 Feb. 2012 <http://www.encyclopedia.com>.

MICHAEL KENNEDY and JOYCE BOURNE. "Mozart, (Johann Georg) Leopold." The Concise Oxford Dictionary of Music. 1996. Encyclopedia.com. (February 9, 2012). http://www.encyclopedia.com/doc/1O76-MozartJohannGeorgLeopold.html

MICHAEL KENNEDY and JOYCE BOURNE. "Mozart, (Johann Georg) Leopold." The Concise Oxford Dictionary of Music. 1996. Retrieved February 09, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O76-MozartJohannGeorgLeopold.html

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Johannes Georg Hagen

Johannes Georg Hagen , 1847-1930, American astronomer and mathematician, b. Austria. A Jesuit, he came in 1880 to the United States to teach. In 1888 he was made director of the astronomical observatory at Georgetown Univ., Washington, D.C., where he remained until 1905. In 1906 he was called to Rome to be at the head of the Vatican Observatory. Much of his research and writing was devoted to the variable stars and to nebulae and cosmic clouds.

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"Johannes Georg Hagen." The Columbia Encyclopedia, 6th ed.. 2008. Encyclopedia.com. 9 Feb. 2012 <http://www.encyclopedia.com>.

"Johannes Georg Hagen." The Columbia Encyclopedia, 6th ed.. 2008. Encyclopedia.com. (February 9, 2012). http://www.encyclopedia.com/doc/1E1-Hagen-Jo.html

"Johannes Georg Hagen." The Columbia Encyclopedia, 6th ed.. 2008. Retrieved February 09, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-Hagen-Jo.html

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