Author: Ursa
Date: 2019-06-04 19:31
Karl:
There are reports that 19th century documents from Steinway and Chickering indicate that their pianos were designed to be tuned anywhere from A=435 to A=460, and there are extant Steinway and Broadwood tuning forks that encompass that entire range of standards.
Think of all the old pianos that you (and I) have encountered that are survivors from the A=455 era. They continue to perform satisfactorily brought down to 440.
Adjusting the pitch of a piano can result in a piano that doesn't stay in tune for very long until the strings and structure of the piano fully adjust to the new standard. And, adjusting a piano upward in pitch is often best done gradually.
A best practice, therefore, would be to devote a piano for sub-440 tuning, and leave its pitch set at that standard.
Post Edited (2019-06-04 19:35)
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The Clarinet BBoard
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