The open files menu is a Windows thing, I don't think I have any control over how it displays filenames, other than writing my own version, which I would rather not do. But I will investigate to see if I can control the position on the screen.

I have decided to go ahead with the use of a music font. It is almost ready now, just one or two minor position tweaks needed. Score looks much better.

Easy Rider - I don't know, I haven't tried that program. But if it is tablature - sorry, Harmony doesn't yet do that (Except for concertina)