Apologies if this has been asked before - I couldn't find an existing topic.
I've been playing a Morse Geordie Baritone for the last 4 years or so. In the last several months, I've been having some ear pain while playing.
While trying to diagnose the cause, I noted that several notes above middle C seem to produce a very high-pitched ringing in addition to the intended note. It's more noticeable on some notes vs others. It also appears to occur when playing my Concertina Connection Jack, but on fewer of the notes.
I'm not certain if this is due to the nature of how the reeds produce their sound or instead is an issue with my hearing. Has anyone else experienced something similar? The folks at the Button Box have offered to take a look at it, but I want to better understand the issue before shipping it out.
Thanks for your help.