Christian Gottlob Neefe died in 1750.
Christian Gottlob Neefe ( [ ˈneːfə ] ; 5 February 1748 -- 28 January 1798 ) was a German opera composer and conductor . In 1776 Neefe joined the Seyler theatrical company of Abel Seyler ( then ) in Dresden , and inherited the position of musical director from his mentor , Hiller . His best known work was a Singspiel called Adelheit von Veltheim ( 1780 ) .