unison clean-up, string voicing

[Susan Kline]

Richard, I think rubbing the string possibly might change the voicing
and false beats by changing the sharpness of the bend as the wire
exits the bearing.

I don't really think that there would be much heat, or that it
would change the pitch for more than a few seconds, but then, I haven't
tried it. Rubbing the string might seat it deeper into the bridge, also.
Long term this might not be all that beneficial, but short term it
might help false beats.

Then there's the "terrorize the wire" theory ... sometimes it seems
that just by mildly unsettling the wire in any way the tone will improve, at
least temporarily. ("Help! We'd better clean up our act, or she may
maul us again!") <grin>

Susan


> >I believe that by rubbing a string in a polishing manner you would induce
> >heat thus lowering the pitch, temporarily.
> >
> >Pat in Denver
> >In a message dated 7/29/00 10:23:54 AM, owner-pianotech-digest@ptg.org
>writes:
> >
>
>Be that as it may, I have heard of several techs who routinely use this
>idea, and they all report that often as not it can help a bit with false
>beats. I am personally not quite so sure even tho I have also done this and
>got the impression of some improvement from time to time. Given the fact
>that there probably are several causes for false beats we dont really
>understand yet, perhaps this isnt such a far fetched idea. Who knows ??
>
>Richard Brekne
>RPT,  NPTF
>Bergen, Norway