Regarding Jack Daniel's query about Art Tatum piano rolls:  John
Farrell made maybe 8 or 10 transcriptions [from phono recordings]
of Tatum's playing.  The titles may be found on his web site
http://www.StridePiano.co.uk/  I have a few more perforator files
from his early efforts as well.

Bob Billings - Sierra Music Rolls
Reno, Nevada
perforator@sbcglobal.net.geentroep [delete ".geentroep" to reply]