Hi, I am trying to source an Ampico scroll from "The Well Tempered
Clavier" (WTC) to borrow or buy.  Our aim is to record an a/b
comparison of equal temperament and the temperament Bradley Lehman
believes that Bach described on his title page to the WTC.  See
e.g.  http://blog.kilometerzero.org/2014/04/24/bachs-squiggle/ 

This recording is for a friend ill with cancer who has always wanted
to hear the difference; using a reproducing piano will let us
illustrate it without any performance variation on a real instrument.

Our recording date is set for the weekend of the 23rd April in New
Zealand, and although we can make do with what we have, it would be
great to have the WTC itself as Bach was so explicit that he had
written these pieces for this temperament.

The only Ampico recording that I know of is

Preludes and Fugues - "The Well Tempered Clavichord":
  No. 2, E minor;
  No. 5, D major
  Roll Number: 65233G [65233]
  Composer/Creator: Bach
  Pianist: Suskind
  Roll System: Ampico
  Date: November, 1925

Please contact me if you can help [email address below].  I'm willing
to consider others by Bach, too.

Thanks and regards,

Richard Procter
richard.n.procter@gmail.com.geentroep [delete ".geentroep" to reply]

 [ At http://www.kylegann.com/histune.html -- An Introduction to
 [   Historical Tunings, by Kyle Gann :
 [ "Equal temperament - the bland, equal spacing of the 12 pitches
 [ of the octave - is pretty much a 20th-century phenomenon. ...
 [ Bach did not use equal temperament.  [He] was, however, interested
 [ in a tuning that would allow him the possibility of working in all
 [ 12 keys, that did not make certain triads off-limits. ... Playing
 [ Bach's Well-Tempered Clavier in today's equal temperament is like
 [ exhibiting Rembrandt paintings with wax paper taped over them."
 [ -- Robbie