Thank you to all who have responded. Ed, the bottom octaves were beating 1bps and possibly faster and the top octaves were close to the beat speed of F3/A4. I never said that both octaves were beating 1bps though I understand what you are asking. Your question does make me think! All I can say is I checked the tuning fairly quickly and what I wrote in my first post was my assessment of the tuning. I never analysed the tuning. As I also wrote in the first post the piano had been tuned two weeks prior to me inspecting it and stands in a hall that is wide open (doors open all day) and has air con for school assembly and performances etc. John, thank you for your time and help. I will try what you have written. I do generally tune unisons as you go for grand pianos even the temperament at times too. On uprights I usually use a temperament strip for the middle and for the treble and bass I tune unisons as you go. Thank you, Take care, Mark -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20100211/6e5fd27a/attachment.htm>
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