From 1986 to 1989, he was parish priest at the St. Thomas Church, Leipzig, church of Johann Sebastian Bach's choir Thomanerchor, and in 1987, he received his ordination at the St. Thomas Church.
Erhard Mauersberger (29 December 1903, Mauersberg, Saxony - 11 December 1982, Leipzig) was a German choral conductor, conducting the Thomanerchor as the fourteenth Thomaskantor since Johann Sebastian Bach.
Künzel was a student at the Thomasschule in Leipzig, Germany, and Schüler der Leipziger Thomasschule and was a member of the Thomanerchor in 1973.