DMcG - fair comment.
My problem is that most of the things I do on a computer are simply for fun. I don't actually NEED to do any of them.
In this case, I could, by hand, re-type individual ABC tunes into one of the two score-setting programmes which I already have on my computer. I don't actually NEED a computer programme to do it for me, although I can appreciate that a quick automatic conversion would be useful, which is why I asked the question.
A problem I have often had with commercial programmes is that they may be very clever or powerful, but I only need one small item of what they do. All the other things in their list, I can do with other programmes I already have, or are things I don't want to do in the first place. MSWord may have whistles and bells, but all I need is something which I can use to write a letter.
I am sure that Harmony Assistant is a very good programme, but I can't justify spending around £50 just to convert ABC to XML when it is something I can do long-hand.
Quack!
GtD.