Hi Dietz, thank you for your thoughts, but there's a special reason why I am searching for a tool to draw music staffs.
The reason why I am searching for such a tool is that I love working with hardcover sketchbooks, journals and notebooks.
I know that there are some journals and notebooks which are pre-formatted with music staffs (Moleskine, Paperblanks. I use them both), and they serve their purpose very well.
I also know that Moleskine's music notebook will be getting a slightly larger format were one blank page is alternated with one page with music staffs, and this would be an ideal layout for me.
However, I love working with large A3 sized hardcover sketchbooks, and so far the only types available are the ones with only blank paper inside.
Call it eccentric, but for me working with a large hardcover sketchbook like the Moleskine A3 folio sketchbook is something very special and appealing. Since they are not available in the interior layout that I would like best I am searching for a convenient tool which allows me to draw music staffs on blank paper without having to draw line after line with a ruler.
The only tools available are the ones which draw staffs of approx. 1 cm, and I am unable to find any other tools for drawing smaller sized music staffs anywhere.