[ Brian Tate wrote in 220828 MMDigest:

> It has probably been almost 10 years ago that I would frequently
> go to a website that had many 88-note piano roll MIDI files in
> alphabetical order by song title.

This may well refer to the IAMMP website, which had to be moved to a new URL. There are over 16000 rolls; the out-of-copyright ones can be downloaded: http://www.pianorollmusic.org/ 

Julian Dyer