Hello all,

Help!   My Duo-Art upright player has just developed a nasty fault.
Two notes adjacent on the action top tier (C and D, I think) play
together.  The problem is not mechanical, so there must be a pneumatic
link, maybe a crack in the wood or a leak between pouches.  Before I
tear it apart, has anyone else seen a similar problem and can offer any
tips for locating and cure?

Thanks in advance,  Darrell