---I've just send the same message without title, so I send it again. Sorry.-- Dear list, I had to raise half step the pitch of an upright piano today. The owner asked me how many kilos (or tons)the tension increase in that case . Could anybody tell me about this subject? I take for granted that many of you would be able to do that. Thank you in advance. Roberto Rovira Argentina roberto_rovira@ciudad.com.ar
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