From 1703 he was back in Thuringia, working as a musician for Protestant churches in Arnstadt and Mühlhausen and, at courts in Weimar, where he expanded his organ repertory, and Köthen, where he was engaged with chamber music. From 1723 he was employed as the cantor at St Thomas's in Leipzig. There he composed music for the principal Lutheran churches of the city, and for its university's student ensemble Collegium Musicum.
The Little Fugue in G Minor
Passacaglia and Fugue in C Minor