Hi Bill, The 0.9 cents tolerance is at what pitch? A4? If so it is more like one beat in 4 seconds. At 02:15 PM 5/31/02 EDT, you wrote: >The PTG Tuning Exam's tolerance is 0.9 cents. Any unison found to have more >than 0.9 cents difference between any 2 strings of a trichord unison will have >points deducted. Basically, this means that any unison must not have a beat in >it that is about 1 beat per second or more. A unison that beats once in 2 >seconds would probably not have points deducted against it. Regards, Don Rose, B.Mus., A.M.U.S., A.MUS., R.M.T., R.P.T. mailto:pianotuna@accesscomm.ca http://us.geocities.com/drpt1948/ 3004 Grant Rd. REGINA, SK S4S 5G7 306-352-3620 or 1-888-29t-uner
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