I use the third and fourth fingers of my left hand together to strike a note while tuning. This reduces the strain had only one digit been used and gives me tactile control of the tone. Twenty-five plus years of tuning aurally also gave me a sore thumb joint from incessant octave pounding. This malady was removed with the use of an ETD since I no longer needed to 'play' an octave to tune but only to verify. Here again, my 3rd & 4th finger combo are used to strike the note, then test octave. Not only has the condition of my thumb joint improved but my ears are no longer bombarded by the db noise of two notes repeatedly sounding together. Less stress overall. Perhaps the only physical ailment present is tendonitis caused by the repetitive motion of tuning while my arm was in a 90 degree position. I tune standing up now to keep my arm straight. GO Pats... Best Regards, Jon Page
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