Seating/false beats

[Susan Kline]

>> >> From: Ron Nossaman <nossaman@southwind.net>
>
>> >> If there were a super lubricant that got you zero friction
>between
>> >the strings and pins,
>> > When struck, the pitch would vary wildly as the
>> >string rendered back and forth freely through the pins.

>> >Granted there is no zero friction execpt in the imaginary.  So in
>> >reality  does the pitch vary less wildly as the string renders
>less
>> >freely through the pins according to how much friction is present?
>
>> >R Moody .

>> Yep. Given a well tuned, stabile piano. I've noticed on some
>instruments, a heavy blow will knock a string slightly flat.
>Following up with a lot of light to medium blows, the string will
>creep back up to pitch! I'm assuming the now overtensioned tail sec.
>	Ron Nossaman
>
>
>
>Sure a heavy blow can knock a string flat, the same way a heavy blow
>can knock a string sharp.    Only because the tensions behind the
>friction points were not equal.  That is why it is hard to imagine a
>string once knocked flat could be knocked back up to pitch, or even
>knocked up at all.  But that is not what Susan's suggestion is about.
>
>So to ask the question directly, explain please?  If there were zero
>friction, "When struck, the pitch would vary wildly as the string
>rendered back and forth freely through the pins."
> If that is the case, the amount of variance should be be both
>detected and measured, and then predicted.  Explanations should also
>answer other questions, .ie   Would there be less pitch variance with
>a softer blow?  What happens to the pitch when the string looses
>energy?  For the pitch to vary wildly, the tension would have to vary
>wildly, since its length and mass are not changing. Or does "moving
>back and forth freely" mean the length is also varying?
>
>Richard Moody
>
Actually, in the never-land of ZERO friction, the pitch wouldn't vary at
all, since the tension of all segments would remain identical. Or so it
seems to me.

{{ :--> )  Susan

Susan Kline
skline@proaxis.com
P.O. Box 1651,
Philomath, OR 97370

Variables won't; constants aren't.