A guide to recorded editions of Conlon Nancarrow's innovative piano player studies. Here a links to listen and purchase:

All of the studies with scores: https://www.youtube.com/watch?v=AfmVJmQKdj4&list=PL18kPNSLqghqPQnayyzAspyu17HmXZtrz

The Other Minds CD edition: https://webstore.otherminds.org/products/om1012-15

The MDG CD Edition: https://www.amazon.com/Nancarrow-Complete-Studies-Player-Piano/dp/B0BCS92P48