There’s no mandated typesetting format, because IMSLP doesn’t host MusicXML content, it hosts PDFs. It’s really up to the content provider to deal with this, and what we’re trying to establish is, what the minimum standards should be. That shouldn’t prescribe the use of one particular notation format if the contributor is capable of surpassing the minimum requirements with another format/software package.
The emphasis we’re looking for is on getting the content right, high-quality; not a free-for-all where it is acceptable for contributors to upload low-quality, error-filled typesets and have other users change them willy-nilly (when generally uploaders aren’t
allowed to overwrite other user’s files, by the way). It might fit under the rubric of the CC-by-sa licence, but I would be very skeptical that all IMSLP contributors would want to go there.
The question is, what are the issues with PDF typesets that you hate? Here are some of mine:
* badly thought-out repeat structures that involve needless page-turning back and forth
* ugly slurs
, or inconsistently typeset ones (follow the rules!)
* badly spaced scores
that result in a huge waste of paper (I like trees, and prefer to minimise paper wastage)
* technically deficient scores and parts
– a significant proportion of new typesets on IMSLP meet this criterion.