Good places to start for knowing where to look, but don't discount or
underestimate the value of organic investigation. Observation is one
of the most important tools we have as professionals. Good suggestions
have been made regarding hammer spacing and mating, string level,
bridge pins, back and duplex sections and mysterious loose parts.
Even improper hammer shank grain alignment that allows a hammer
to tremble can lead to extraneous noises as can loose flange screws.
Although possible, agraffes are a less likely culprit, being very immovable
in general. Certainly check for wear and machining errors in them. Strings
and string contact, bridge pins, and moving parts are more likely causes,
especially if the piano was made prior to about 2001. The 21st century
models probably won't exhibit these issues.
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Dave Conte
Owner
North Richland Hills TX
817-581-7321
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Original Message:
Sent: 04-25-2019 02:27
From: Benjamin Sanchez
Subject: Petrof Zing
Initial research:
Looking up zinging noises or other similar terms in the technical exam book, Jim Busby's ebooks (particularly the one on voicing), and Mario Igrec's Pianos Inside Out.
All the best,
Benjamin Sanchez
Professional Piano Services
(805) 315-8050
www.professional-piano-services.com
Original Message------
Benjamin,
What was your "initial research"?
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Dave Conte
Owner
North Richland Hills TX
817-581-7321
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