How staff lines were drawn by the Bach family

How Johann Sebastian Bach used his five pointed nib, called a rastrum, to produce staff lines. Where he placed his inkwell, some observations about his writing desk and the dangers of pipe smoking. About the method used by his calligraphy teacher and older brother: Johann Christoph Bach. In addition, some observations about how his sons, students and wife dealt with it. Hairs stuck in gum arabic & food stains. Visit my website for more information about Bach and calligraphy: Examples of Bach score calligraphy can be seen on my Instagram account, also suitable for contact via DM: @ BWV 515: “How often does it happen when smoking, if you don't have the stopper at hand, that you use your finger. Then I think, as I burn myself: Oh, if this hurts so bad, how hot will it be in hell?“