Trichords tuning

[Roger Jolly]

Hi Karen,
              Very small false beats at the bridge and the  forward
temination system, can fool the best ETD's hence the ear should be the
final arbitrator. A miss shaped or badly fitted hammer causing phasing, can
also lead you down the garden path. The key is to learn to reconize the
symptoms and correct them for the benifit of the player. 
Regards Roger



At 10:10 AM 27/11/98 -0500, you wrote:
>Since I am an ETD tuner, this thread is of great interest to me. Please keep
>posting your experience with the SAT.  Sometimes when I'm tuning I think I'm
>going crazy because my ear doesn't agree with the SAT.  I appreciate
>everyone's input.
>Karen Johnson
>Rochester, MN
>
>  In a message dated 98-11-27 09:54:38 EST, you write:
>
><<  I agree with that,  I tune each outside string to a SAT, and then the
>middle
> by ear.  The coupled motion, along with all the other variables that will
> exist in three strings over a bridge,etc,  makes a clear unison a very
>complex
> phase problem, of which the ear is going to be the final judge.   
>     It is rare that the middle string will not stop the SAT when it is tuned
> aurally, but there are cases where the best sounding unison shows the
dial to
> be moving all around.  I always assume that there was something out of step
> with the particular partial that the SAT was reading.  
>     The staggered Steinway spacing on some of the Models C and D  responds
> well to tuning the center string to the SAT, and then both outside
strings to
> it.  I still have to listen to all three to clear them.   >>
> 
Roger Jolly
Baldwin Yamaha Piano Centre
Saskatoon and Regina
Saskatchewan, Canada.
306-665-0213
Fax 652-0505