Robert Clark taught at the University of Michigan from 1964 to 1981, and at Arizona State University, Tempe, from 1981 until his retirement in 1998. One of his most noted achievements as a performer was his recording, Bach at Naumburg, on the newly restored organ built by Zacharias Hildebrandt in 1747, an organ tested and approved by J. S. Bach and Gottfried Silbermann.
