Christian Geist (c. 1650 - 27 September 1711) was a German composer and organist, who lived and worked mainly in Scandinavia. He was born in Güstrow, where his father, Joachim Geist, was cantor at the cathedral school. 1665?1666 and 1668?1669 he was a boy member of the court orchestra conducted by Daniel Danielis (1635-1696) of Duke Gustav Adolph of Mecklenburg-Güstrow. He was a bass player at the Danish court orchestra in Copenhagen in 1669 and in June 1670 moved to the Swedish court orchestra under Gustaf Düben the elder (c. 1628-1690), a position he held until June 1679, having applied unsuccessfully for the position of choirmaster of St. John's in Hamburg in 1674. He became organist of the German church in Göteborg, and in November 1684 moved to Copenhagen, where he succeeded J.M. Radeck as organist of the Helligaandskirke, a post he held to his death, and also the Trinitatis Kirke, after marrying his widow Magdalena Sibylla in May 1685 (a practice by no means rare). He succeeded Johann Lorentz as organist of the Holmens Kirke in 1689. He died, with his third wife and all their children, of the bubonic plague. (Hide extended text)...(Read all) Source : Wikipedia