Thomas M. J. Schäfer composed a permutative canon for 3 voices, 30 bars and 300 seconds. The graphical score has the shape of an equilateral triangle. The canon theme consists of 10 bars. The three voices have to pause sometimes for one or more bars when the theme was played. The beginning tonality is shifted, the permutations lead to dissonances and modern impression. Baroque and modern spirit are linked by romantic phrasing. The canon refers to the name, the oeuvre and the contrapuntal execution of J. S. Bach.