For anyone who is interested in an example -
IMSLP has a 3 of the fugues in open score as a pdf file.. here is a link to one of them..
https://javanese.imslp.info/files/imglnks/usimg/1/1a/IMSLP99493-PMLP05948-WTC_Book_1_Fuga_4_Open_Score.pdfThese are a good start, but I personally am quite drawn to the idea of having public domain engraving files so that I can take parts out, or add fingerings, my own general editorial marks, analysis etc..
I will probably bite the bullet and learn to use lilypond since its arguably 95% done already in that format so far as having a raw open score, other ideas will still take time to put together. Lilypond scores are also pretty damn good looking..
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I'm guessing you just want standard treble and bass clefs, no c-clefs or the transposed treble clef used in standard open score?
I think so, but in saying that - part of the reason having engraving files is important is to make it freely editable by anyone - so if someone wants to put use alternate clefs they can do that with relative ease..
How easy is it to change clef, or transpose etc in lilypond? can you run a filter on the file and do it automatically or do you have to rewrite all the notes yourself?