Hello All,  Thanks for the responses to my question on the tracker/
transposer (T/T) bar.  After more careful searching (with my glasses
on and better lighting), I found the dust covered screws holding the
cover above the T/T bar and removed them and the cover.  Sure enough,
all but maybe four of what used to be pliable rubber tubes (they are
now hard as rocks and brittle as glass) were broken at both the T/T
bar nipples and where they connected to the lead tubing at the back
of the spool box.

I managed to remove the pieces of tubing on the T/T bar nipples and
the lead tube ends without any damage to those parts (I think/hope)
by carefully 'picking' and slicing a groove with X-acto knife into
the hardened tubes.  The hardened tube ends came off the T/T bar
nipples easier than form the lead tube ends.  I did get a couple of
minor (I hope) scratches on the ends of the lead tube using this
process.

Now to get the tubing from the T/T bar back to the lead tubing in the
rear of the spool box.  These lead tubes come into the rear of the
spool box in a 4-row staggered array, each row having 22 lead tube
ends.  Sort of looks like the diagram below looking into the spool box
from the front:

    -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
(4)
  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
(3)
    -   -  -  -  -  -  -  -  -  -  -   -  -  -  -  -  -  -  -  -
(2)
  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
(1)

The T/T bar has only two rows of nipples, like rows (1) and (2) above.
Any suggestions on how the T/T bar tubes connect to the lead tube ends?
(My apologies to Gary Rasmussen if I'm missing something that should be
obvious.  We may have players with a different arrangement of the lead
tubing).

I was also wondering if there are any specialized brushes for cleaning
the nipples or lead tube ends, sort of like what one uses to clean the
outside of copper pipe in preparation for applying solder.  After
picking, chipping off the old tubing, the nipples still seem to have
a dark color/residue on them.  My initial thoughts are that this
_probably_ is not much of a problem.

A quick update on the Acme Piano Co. in Philadelphia.  My daughter and
wife drove by the place last Tuesday, but they reported that it didn't
look like the place was open or that anyone was there.  They doubted if
the place was still open for business.  After they relayed this info to
me, I tried the telephone number I got off the Web: (215) 468-8766.

Sure enough, someone answered. The gentleman I spoke to said their
hours of operation were from 9 AM to 4 PM six days a week, Monday
through Saturday.  I asked if he had player pianos and parts, and old
piano swivel stools and he replied that he did.  But he said I'd have
to call back this Monday for prices if I wanted them since the fellow
who handled this was not available when I called.  Might be a place to
find parts!

Dale Houser