David, This is going to be a naive suggestion after all the work that's been done to the instrument, but it may be worth checking if all the plate bolts were tightened before the piano was strung. Vladan David Renaud wrote: Thanks for the replies. Especially Don's and Ron N's comprehensive & constructive points. I will be on site this Thursday, will compile more comprehensive measurements as suggested, and post them here. Steinway had sent somebody to Montreal to look at the piano because of various complaints. It was looked at for voicing, seating, regulation... and was in the end rejected, then sent to a satellite conservatory where I live. A technician from Quebec followed it up and did extensive seating, string mating, regulation, and voicing....a very nice job. I was very impressed with his work. The piano since refuses to have strings remain seated, and has buzzing back scale at various points on the plates. I eliminated some of these buzzes by placing some felt between the string and the chrome plate at the back scale. My hypothesis was that the bridge had rolled enough, or the soundboard had collapsed enough in front of the bridge for the front to lower, and the back to raise high enough to eliminate back scale down bearing at the plate at a couple points. I could press down on the string next to the chrome plate (what is the proper name for the back scale plates?) and eliminate the buzz). I did have a second technician look with a bubble gauge. Where the loudest plate buzz is, plus 12 at the back -24 on the speaking side is rather severe. I post will follow Thursday with more measurements, and crown observations between every rib. Thank You David Renaud __________________________________ Do you Yahoo!? Yahoo! Mail - You care about security. So do we. http://promotions.yahoo.com/new_mail
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