I would recommend Frank Edgeley in Windsor, Ontario, or perhaps the folks
at the Buttonbox or HMT could help.
I would be very hesitant about retuning it myself. Frank would be happy
to give you his opinion. I don't have his number unfortunately.
>A friend of mine has a Wheatstone English concertina circa 1912 which is
>tuned flat. Anyone out there familiar with a resource to retune it to
>standard pitch? I should also say that he is somewhat concerned about
>doing this in case he destroys the character of the instrument, either
>musically or historically!
>Thanks for any info.