I have just finished rebuilding my second Duo-Art in six years and
decided I should own one or two reproducing rolls, so I don't have
to bum them from friends to test the piano.  The customer's rolls are
in such bad shape I didn't want to borrow one of theirs.

Could someone give me suggestions for what rolls I should have that
really test the dynamics, if I were to have only one or two rolls each
for Ampico A, Ampico B, Duo-Art, Welte and Recordo?

I am not as concerned if the rolls are true to the original master but
rather do they give a good test of the rebuilding.  Of course price
is always a consideration.

John Dewey

 [ Factory test rolls and their accompanying instructions are commonly
 [ used to verify the general operation of the system.  After that many
 [ experienced techs listen to their own favorite "test rolls" --
 [ classical and pop tunes which are known to display performance
 [ subtleties that aren't tested by the factory test rolls.  From his
 [ experience with many similar pianos the player tech knows just what
 [ to listen for and what adjustments to make.
 [
 [ I don't think this "fine-tuning" process has been described in detail
 [ anywhere.  It's a good discussion topic for MMD.  -- Robbie