About Bach's involvement and contributions in organ building technology of his age, the point of view comes from here discussed at length: "Bach: Music in the

About Bach's involvement and contributions in organ building technology of his age, the point of view comes from here discussed at length: "Bach: Music in the Castle of Heaven" by John Eliot Gardiner. He is a reliable source. https://en.wikipedia.org/wiki/John_Eliot_Gardiner https://en.wikipedia.org/wiki/John_Eliot_Gardiner A detailed comparison with modern music comes from a recent author whose name slips my mind. He taught at Columbia University, a journalist, his entire book is on the relationship of Bach with all kinds of recorded music in digital age.