From 1996–2002, Ruiter-Feenstra served as Senior Researcher at the Göteborg Organ Art Center, learning much about historic instrument construction, sound, and music from colleagues and instruments, teaching improvisation courses at Göteborg University, and launching research on Bach and improvisation. As Professor of Music at Bethany College, Lindsborg, Kansas (1989–1996) and Eastern Michigan University (1996–2008), Ruiter-Feenstra taught organ, harpsichord, theory, improvisation, sacred music, and directed the Collegium Musicum. In 2008, Ruiter-Feenstra chose to leave institutional work in favor of freelancing as performer, pedagogue, author, composer, and recording artist.
Bach and the Art of Improvisation
Ann Arbor, MI: CHI Press, 2011.
Bach’s Teacher Böhm & Improvisation