Hi,  I purchased an Aeolian Duo-Art upright reproducer a couple of
years ago.  According to Art Reblitz's book, it is pre 1925.  Parts
of the Duo-Art were not together when purchased.  I now have the piano
together and (to me) it plays beautifully.  I am unsure of how one of
the reproducer parts functions.

There is a dual (two ports) air switch on the soft pedal pneumatic
that has no tubing, and I am not certain where it should be tubed.
I think one tube goes to each of the accordion pneumatics, but none
of the books I have talk about or show this part.  Mr. Reblitz's book
has illustrations and text for post-1925 pianos only.  Any help MMDers
can give would be much appreciated.

Thanks,
Randy Blake

 [ Randy, this topic has been discussed in MMD several times.  Use your
 [ web browser to view  http://mmd.foxtail.com/archives.html and select
 [ Subject index:  http://mmd.foxtail.com/Archives/KWIC/index.html
 [ Click "D" for http://mmd.foxtail.com/Archives/KWIC/D.html
 [ then "Duo-Art":  http://mmd.foxtail.com/Archives/KWIC/D/duo_art.html
 [ Use your browser "Find..." function to search for "Soft Pedal";
 [ I found six articles.  There may be more under "Pedal".   -- Robbie