Ce message est en plusieurs parties sous format MIME. ---------------------- multipart/mixed attachment Hello Roger, Of course differences could be because of the old strings. I send again the file, as LINK - Sorry I did not intend to fill all the Pianotech with my post. In HTML it will be more readeable I hope. What they try to check anywway was the fact (theory) that a tuner doe's not tune the three (yes they test 3 strings) unissons (fondamental) with the same pitch, and why. Twoo strings are coupling in phase opposition after a few seconds, so their fondamental are in tune so what do we do of the third string ? I too strongly suspect spectral differences because of the hammers, strings, V-bar and so on. I totally agree with the partias change corellated with the hammer elasticity. A few weeks I tuned a piano (D S&S) for students recording a CD in a conservatory. This D had been voiced without shaping of the hammers, these are lively but with large grooves. I was obliged to come back because they had big thump noises when using the left pedal, due to the grooves of course. In a hurry, I shape (!) the hammers quickly, voice a little, an then I was obliged to tune again all the 5th octave and up to treble, with much less strech, because of the change in sound wich did not allow the large strech used before. I've done that aurally in 20' and all of that was very natural to my ears. Did not have the time to check with RCT (but this piano is very stable). Roger, I will forward your comments to the author of the tests, as I tune for Ircam and he is always there. BTW I did no really "shape " the hammers, nor all hammers, mostly the middle ones that where producing a very audible attack noise. I only cut the edges of the 5th aoct and Treble hammers. (finished with 400 paper) After having sweated my shirt, the student come, tryed the piano, and they where really pleased. So was I, but I will not do this for a concert, no. Best regards to you all THE FILE (please computer don't send all that garbage I've seen) ---------------------- multipart/mixed attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/b7/0b/7a/6f/FTRICORD.htm ---------------------- multipart/mixed attachment--
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