Johann Gottlieb Janitsch (1708 – 1762) was a German Baroque composer.
He received his first musical education at the Latin school of the Holy Trinity in his hometown.
In 1729 his father sent him to Frankfurt an der Oder, where he studied law at the University of Frankfurt an der Oder until 1733. During this time he received his first commissions to write large scale musical works for festive occasions.
In 1736, the then Crown Prince, Frederick offered him a position as a "Contraviolinist" in his ensemble in Ruppin and a year later, in Rheinsberg,
From 1740, when Frederick ascended to the Prussian throne, Janitsch's position as Contraviolinist was transferred to the newly founded Berlin Court Orchestra, where he was awarded a salary of 350 thalers. The Friday academies continued in Berlin in his home in the form of weekly concerts open to the public.
Janitsch's compositional style is typical of the galant and the empfindsamer Stil of the first half of the 18th century. Although several of Janitsch's works were already published by Breitkopf during his lifetime, most of his surviving output exists in manuscript form. The largest repository of Janitsch's surviving works is the archive of the Sing-Akademie zu Berlin,
This sonata is in 4 parts. The entry points are: