Johann Georg Albrechtsberger ( born 3 February 1736 in Klosterneuburg near Vienna ; died 7 March 1809 in Vienna ) was an Austrian composer , organist , music theorist and music teacher . Johann Georg Albrechtsberger ( 3 February 1736 -- 7 March 1809 ) was an Austrian musician who was born at Klosterneuburg , near Vienna .