[ Ref. Reg Smith in 211220 MMDigest --

Hi Reg, I have some familiarity with PianoLodeons. I own three and for
years I sold a replacement belt on eBay. (For the whole story check MMD
Archives under Tom Sendall, Chein PianoLodeon.) Here is my description
of what goes where in the tubing department.

Looking from the back of the instrument, the first seven notes at the
left have no connection. Above, there is the back of the tracker bar.
I label the top row of 11 nipples is A, the lower row of 12 nipples
is B, each numbered from left to right. So starting with eighth note
from left, its hose connects up to B1 nipple. Then --

 2 to A1   13 to B7
 3 to B2   14 to A7
 4 to A2   15 to B8
 5 to B3   16 to A8
 6 to A3   17 to B9
 7 to B4   18 to A9
 8 to A4   19 to B10
 9 to B5   20 to A10
10 to A5   21 to B11
11 to B6   22 to A11
12 to A6   23 to B12

I hope that you find this useful.

Tom Sendall
Piney River, Virginia