Roy writes:
<< I have a Chickering 135 scale in the shop presently. There are 4 unisons
of wound trichords in the tenor, and then 59 plain wire unisons. 25 bass
notes. >>
I have rebuilt several of these pianos. The original scale has some quirks in
it, though I am not sure what they are. I found that carrying an equal
temperament down through the bass is impossible. There are some farily obvious
compromises that are required to keep the octaves clean, (the occasional busy
fourth or some erratic progression of the thirds).
On one of these pianos, I had the Sandersons make up a new scale ( I
think it was around 1993 or so). Tey increased the number of bichords on the
treble bridge. That piano tuned more evenly than any of the others, however,
there seemed to be something missing in the overall sound of the instrument. It
didn't sound quite as big, and I don't know why .
Regards,
Ed Foote RPT
http://www.uk-piano.org/edfoote/index.html
www.uk-piano.org/edfoote/well_tempered_piano.html
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