The nine tracks have been posted by the mysterious user487363530, and have been confirmed by Planet Mu's Mike Paradinas as genuine. As we all know, it'd best to take anything Richard D James related with more than a pinch of salt.
Interestingly, a fan wrote:
“Would like to know the full setup for this track, brilliant music man. I love your early 90′s stuff so much, I was doing stuff in the early 90’s, similar to you but I didn’t know about you when I did it ! Im also 43 years old :) I’m going to be uploading it to soundcloud soon, gotta dust off the old DAT’s & cassettes!”
To which Aphex Twin has responded: “beautiful stuff, would love to hear more”.
Listen to the alleged early demos below