As a violinist and an organist this Czech composer served in Prague and Augsburg. In Prague Zach was a violinist at St. Gallus and St. Martin and later served as an organist for St. Martin. He became the Kapellmeister in Augsburg for the Prince-Elector of Mainz in 1745. One of Zach's masses was performed at the coronation of the Emperor Franz I. He traveled for a brief period in Italy the influence of which appears in his music particularly the instrumental sinfonias and concertos which were set in three movements employing parallel sixths and thirds, Alberti bass, and occasio...