I¹m interested to hear from anyone who has any 3 5 year old Bechstein model Bs in heavy use, and would care to share your experience of tuning stability in this piano. I¹m having severe unison drift in the lower capo section (10 15 strings/up to 5 cents/individual strings within the trichord) within 10 days of tuning; remainder of the piano is rock solid. We have 10 Bechsteins and the ones giving trouble are in keyboard teaching rooms and get heavy student use outside teaching hours. Other pianos in these rooms ( S&S B and Yam C5) are stable. I have diagnosed rendering problems due to a steep-ish approach angle to the capo. I¹m now 2 months into a regime of revisiting fortnightly to rectify just the unisons, with a major focus on hammer technique. They are still not stable. Also happy to talk off list, thanks, Geoffrey Pollard GEOFFREY POLLARD | Piano Technician SYDNEY CONSERVATORIUM OF MUSIC C41, MACQUARIE STREET, SYDNEY. 2000 T 61 2 9351 1221 | F 61 2 9351 1287 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/caut.php/attachments/20091016/503ad3d2/attachment.htm>
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