Harmonische Freude features chamber music by J.S. Bach and his extended circle, as played on period instruments by Austral Harmony, an Australian ensemble specializing in 18th c. music. • Inspiration comes from the organ preludes in Kauffmann’s collection Harmonische Seelenlust musikalischer Gönner und Freunde, which specifies use of an oboe so placed to give the impression that it is an organ stop. • Kauffmann’s pupil Tag illustrates the emerging 18th c. Empfindsamkeit (‘expressive’ style. • Krebs and Homilius were pupils of Bach who aspired to perpetuate the tradition of their great teacher.