Kellner’s main contribution towards the music corpus was “Truelicher Unterricht im General-Bass” published in 1732. The treatise was very popular and proceeded to go into editions as past due as 1796 having been translated into Swedish and Dutch. His explanations had been succinct and significantly less than one hundred web pages. He discussed essential thoroughbass compositions by Mattheson and Heinichen with them to cover different topics including chord buildings, intervals, the usage of statistics, accompaniment, uncommon progressions, and consonance and dissonance. In Sweden, Kellner was an organist in Stockholm for The Jacobi Jyrka as well as the carillonneur for the German cathedral. He was perhaps one of the most achieved lutenists in Germany and among the final virtuoso performers on that device. “Auserlesene Lauten-Stucke” was a assortment of seventeen lute parts in various forms including dances, fantasies and variants.