It is a shame that you can't access the scanned piano rolls of Conlon Nancarrow's player piano music in an archive like this. The scans do exist apparently, bu

It is a shame that you can't access the scanned piano rolls of Conlon Nancarrow's player piano music in an archive like this. The scans do exist apparently, but are merely documented on the web (https://www.paul-sacher-stiftung.ch/en/research/1-2-Conlon-Nancarrow-Edition-project/6-midi-files-rolls.html https://www.paul-sacher-stiftung.ch/en/research/1-2-Conlon-N...) without explicit download access. An incredibly comprehensive Youtube video exists however: https://www.youtube.com/watch?v=AfmVJmQKdj4 https://www.youtube.com/watch?v=AfmVJmQKdj4