Strike Tone not Yielding same beatspeed

Billbrpt@AOL.COM Billbrpt@AOL.COM
Wed, 30 May 2001 12:21:34 EDT


---------------------- multipart/alternative attachment
In a message dated 5/30/01 11:08:10 AM Central Daylight Time, 
Michael.Jorgensen@cmich.edu (Michael Jorgensen) writes:


> I also wonder also if when a string of such low tension is struck
> by a hammer,  if the inharmonicity is greatly different than when the
> harmonic is excited by a strike tone.
> 
> 

That is also a distinct possibility although it only raises more questions 
and still never answers the main one:  why just this one note?

Years ago, I saw Rick Baldassin RPT demonstrate that a bowed string will have 
little or no Inharmonicity while the same string struck will exhibit the 
characteristic Inharmonicity that is expected.  Perhaps the "ghosting" 
technique mimics what a bow would do.

I usually hear lots of "jingling" sounds, that is, faint, rapid beating when 
tuning the lowest strings.  I assume these are the highest of the coincident 
partials.  Because they are the lowest strings, the highest of the coincident 
partials are still within the audible range while among the highest strings, 
only the lower sets of partials may be audible.

One way or the other, I think a different set of partials becomes more 
prominent when playing the interval versus using the ghosting technique.  But 
still, *why* only with this one example?  It's an interesting puzzle.

Bill Bremmer RPT
Madison, Wisconsin

---------------------- multipart/alternative attachment
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/93/21/70/b2/attachment.htm

---------------------- multipart/alternative attachment--


This PTG archive page provided courtesy of Moy Piano Service, LLC