The official publication of the American Bach Society, Bach Perspectives pioneers new areas of research into the life, times, and music of the master composer. In Volume 10 of the series, Matthew Dirst edits a collection of groundbreaking essays exploring various aspects of Bach's organ-related activities. Lynn Edwards Butler reconsiders Bach's report on Johann Scheibe's organ at St. Paul's Church in Leipzig. Robin Leaver clarifies the likely provenance and purpose of a collection of chorale harmonizations copied in Dresden. George Stauffer investigates the ways various independent trio movements served Bach as an artist and teacher. In separate contributions, Christoph Wolff and Gregory Butler seek the origins of concerted Bach cantata movements spotlighting the organ and propose family trees of both parent works and offspring. Finally, Matthew Cron provides a broad cultural frame for such pieces and notes how their components engage in a larger discourse about the German Baroque organ's intimation of heaven.

The sixth volume in the Bach Perspectives series opens with Joshua Rifkin's seminal study of the early source history of the B-minor orchestral suite. Rifkin elaborates on his discovery that the work in its present form for solo flute goes back to an earlier version in A minor, ostensibly for solo violin. He also takes the discovery as the point of departure for a wide-ranging discussion of the origins and extent of Bach's output in the area of concerted ensemble music. 

In other essays, Jeanne Swack presents an enlightening comparison of Georg Phillip Telemann's and Bach's approach to the French overture as concerted movements in their church cantatas. Steven Zohn views the B-minor orchestral suite from the standpoint of the "concert en ouverture." In addition, Zohn responds to Rifkin by suggesting Bach may have scored the early version of the B-minor orchestral suite for flute.

In his study of Bach’s Clavier-Ubung III, Gregory Butler makes a major contribution to organ music and Bach studies by giving to original printed copies of this work the kind of attention normally reserved for manuscripts. He details the work’s chronology, production, aim, and even spiritual program, treating the prints as unique documents with discernible variants and readings.
The need to examine early printed copies of music is being recognized as an important tool which can reveal as much as the study of early manuscripts. Composers themselves frequently took a major role in the preparation of the engraving.
Clavier-Ubung III—arguably the most carefully planned, intellectually conceived, and challenging volume of organ music ever published—is a particularly useful example of Bach’s printed works known chiefly from the print itself. The print is richer in information than any of the other original prints of Bach’s music, making it a distinctly suitable repertory for the author’s innovative treatment. Butler reveals fascinating new information on the genesis and history of the collection’s composition, finding, in part, that sections of the work were composed considerably earlier than previously was believed.