Thanks for getting back to me, Phil. I don't have next gen tools, but I was actually able to print a mashup to pdf which appears to be vectorised as it remained smooth as I zoomed in. All I needed was Paint to erase bits (upside down clef dots) & to copy from part of the second "o" over the conjunction of the upside down clef's tail/dot with the first "o". Did all that at about page width (8" or 20cm) scale. Happy to receive input from the graphical design perspective if you think there's clearly room for improvement
Peter