Yesterday, I started mucking about with an old 'legacy' ABC file (from 2012), and thought that I'd try the URL which was included with each tune. These old URLs are usually 'dead', but this one wasn't!
The Highland Music Trust (HMT) web site contains much of interest to lovers of Scottish music - including free PDFs to download (but no ABC as far as I can see), and a selection of printed tune books to buy. I'd never heard of the HMT, and can find only one mention when I search in concertina.net (over 20 years ago!), so I reckon it's worth mentioning again...
I'm having a great time editing the ABC file I currently have into a form which suits me, and which plays back half-decently. A bit further down the road, I may well look at those PDFs and do a couple of transcriptions of my own, from scratch....
Worth a look?
(x-posted to melodeon.net)