Folks, what I had in mind in my recent post on this subject was this:

I have reel-to-reel tape recordings I made back in the 1960s of many of
the best reproducing pianos that went through my hands for restoration
and resale.  For example, I have some tape of Welte Licensee rolls
played on a Baldwin Welte Licensee grand reproducer.  When I listen to
them after all these years, they sound the best to me of all the
recordings I made of Ampico and Duo-Art.

These audio tapes I was wanting to make into MIDI files.  I think
I may have figured out a way to do it.  I will later report if it is
successful and just what I did.  For starters I have a freebie program
I downloaded a year or two ago for making music into MP3, called Music
Master.  It appears to have a way therein to make WAV files which would
be a step on the way to make audio into MIDI.  The source, of course,
has to be solo instruments, like the piano, for example.  I no longer
possess any of the piano rolls.

Ellsworth Johnson