Progressive Bach is a new edition of the 371 Bach Chorales in a unique condensation. All of the nonharmonic tones have been removed, so as to more obviously reveal chordal progressions and harmonic structures. This is not a performance edition, but rather one for theoretical study. The emphasis here is not on how Bach used texts, but rather in his abstract pitch associations. These versions enable music majors and lifetime learners to get closer to the original versions, and are more easily playable at the keyboard. Since the nonharmonic tones have been removed, study in that area is enhanced when these versions are compared with the originals. (The accepted numerical system has been retained.) Thus many aspects of Bach’s harmonizations become more obvious, and to a greater number of people. Such a book is useful in first-year Theory courses, in Class Piano, and possibly by organist wishing unique versions that precede performances of the full versions.