Hi Julie, I find the string that has the shortest distance to the tuning pin varies the most of the three--so if "proof" is what you are after try it out. Personally my limit for "fine tuning" is + or - two cents. If you want the "real picture" you may wish to average all three strings--and do a graph of the F3 to F4 octave note by note. (it is not often a pretty sight, unless you have tuned the instrument five or six times in a row {over a period of years}). At 11:32 AM 12/29/2005 EST, you wrote: > Greetings, Which of the three strings (in treble notes) do you >use to measure the A's? Which would be the most reliable "tell" out of the >three? Julie Gottshall Regards, Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T. Non calor sed umor est qui nobis incommodat mailto:pianotuna@yahoo.com http://us.geocities.com/drpt1948/ 3004 Grant Rd. REGINA, SK, S4S 5G7 306-539-0716 or 1-888-29t-uner
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