Hi, Doug
Yes, I understand now. I just got much more attached to the words "quick" and "lines". Certainly there could be '0 lines' as in my PMN system.
Indeed if one stretches the word "quick", they can trace lines carefully enough across the width of a page (A4 or even A3).
And Music can be composed in small chunks, that is true also. But since Bach and around his time he had to use a rastrum (special pen, fork-like tool) to trace staff lines presumably to save time and consequently to have such papers prepared beforehand, I assumed that is the 'general' method of writing music with a 'pen and paper' as it is the way musicians did since the inventing of the printing press (although it was probably too expensive back then and not so much accessible).
Nowadays musicians by 'specially prepared score papers' though, so that they do not have to use rastrum or 'waste time' tracing (identical\parallel) lines by hand (presumably excluding dashed\dotted lines).
I also assumed that since music is a creative endeavour and can happen "at any time", no musician would be willing to risk "musical ideas flying away" simply because first they have to trace staff lines (regardless 1, 2… or 5).
Thus most musicians would trace staff lines on paper in their non-creative time, thus making a 'specially prepared paper' just in case "sudden moments of inspiration" happen. That is the point of view from which I interpreted the Criteria.