I question the assertion that the Lautenwerck was common — let alone as common as harpsichords and organs — even in Bach's time. It's not broadly mentioned in

I question the assertion that the Lautenwerck was common — let alone as common as harpsichords and organs — even in Bach's time. It's not broadly mentioned in written sources of the time, and so many practical points are not in its favor. Knowing that Bach had two is some evidence, but I see it as analogous to knowing that a particular musician owned two 8-string guitars: it tells us nothing but that they exist, and that one person really likes them. I know this is a reporter talking, but still. Also, as a violist, I have to point out that one of Bach's sons said the viola was his favorite instrument.