[pianotech] Tuning test scoring

David Renaud drjazzca at yahoo.ca
Sat Feb 21 08:36:23 PST 2009


Reading your email again here are answers to your other questions.

1) Your pitch would pass with 100%. 
   
2) Part one is 45 min, temp. and midrange being done together.
   c3 to b4 is tuned, read, marked. Temp. will not be marked again
   although the temp. is read by the machine a second time after part
   2 only for the purpose of calculating a current offset number. Pitch also is not remarked. You may choose to correct a couple errors in part one if you want to to provide a better base for the rest of the tuning. That is up to you. Stability will be checked on C3-B4 after part 2 is finished and marked, so don t go messing with it unaware that stbility in that section will yet be assesed by attempting to move notes with the prescribed weight. There is a drift offset, but no other offset for errors in the midrange that may multipy out the octaves. The margin of error before earning points goes  up to 3 and then 6 cents for the top octave, and the multiplier goes way down to 1. Therefore failing the top octave for example requires in excess of 20 points, not 8 as in the temp.

   My advice is to use the machine as you are to check pitch, unisions,
stability, and get an idea on temp. Have an RPT listen to the intervals. For the rest of the piano just do your basic everyday normal
tuning.In the top octave, insist on nice clean single octaves for the test.

  One last offering.
  A0, A#0, B0, and C8 and not read and not marked. C1- B7 is the test.







                                       
 


3) 


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