Hymn tunes by him or based on his works with MIDI audio and NWC format scores plus portrait. From the Cyberhymnal.

City-by-city musical biography with hymn tunes, cantatas, organ chorales, and bibliography from Hymnuts.

Biography, timeline, quotes, key works, suggested recordings and reading, selected works, and links from Humanities Web.

Classical music dictionary entry with life, works, catalogue, illustrations, and MIDI audio files.

Stefan Scheller demonstrates the illusion of the Shepard Effect using Bach's Canon per Tonus. Includes links, credits, theoretical discussion, and illustration using M. C. Escher.

Essay examines how the composer expanded this musical genre within the context of its existing form.