Weird problem with diatonic accordion
Hey, was wondering whether anyone here had some insight...
My B/C diatonic accordion has, apparently overnight, developed this weird problem. The lowest few notes for the octave-lower "bassoon" reed on the right hand have started to sound kinda awful.
The pull notes are fine, but on the push, the five or six lowest buttons produce a rather wheezy sound, with strange, out-of-tune overtones in addition to the correct note, which sounds in tune.
This is driving me insane! Why do these low notes suddenly seem to produce slight extra notes which are out of tune, in addition to a weird air sound?! Everything else about the instrument looks fine, and plays perfectly. Nothing has changed, admittedly it has been warm and humid here but nothing out of the ordinary.
Please help!!