Yamaha U5....WOW!

[Richard Brekne]

Hi Tom..

Yes... these ARE nice pianos arent they ? I have seen 3 now and all are really
impressive.

Tom Servinsky wrote:

> List,
> I just worked on a fabulous new Yamaha U5. I have to handed to the folks at
> Yamaha...this is about as nice of an upright as I have yet to experience.
> Except for the single escapement action, this is literally a grand piano
> turned vertical. Agraffes, full sostenuto, incredible smooth tuning curve...
> a true pleasure to tune and play.  If they  could only figure a way to
> figure in a left pedal shift mechanism.
> Keep up the good  work Yamaha!!!
> Tom Servinsky,RPT
> ----- Original Message -----
> From: "Don" <pianotuna@accesscomm.ca>
> To: <pianotech@ptg.org>
> Sent: Thursday, February 07, 2002 10:05 AM
> Subject: Re: Piano acoustics
>
> > Hi Ric,
> >
> > I do agree that an ETD will give different results in such measurements.
> > One might instead of using a quartz crystal type sound producing device
> use
> > a tone bar with a striker. The problem with measurements in a piano is the
> > method by which the string is excited. It is very difficult to strike the
> > key in an identical manner 5 times in a row. I do wish someone with access
> > to one of the diskclavier style actions would try to do some measurements.
> > There was one study done a while ago and I did post the url to the list.
> >
> > The accuracy of the best EDT's is not at question. The method of using
> them
> > for measurements *is*.
> >
> > At 12:38 AM 2/7/02 -0600, you wrote:
> > >I have no doubt you are measuring differences of inharmonicity.
> >
> > <snip>
> > >the machines are not consistant with inharmomicity readings then
> > >they could be compared to reading the fundamental of  a sound or tone
> > >source such quartz digital instrument, or the shortwave broadcasts.  An
> > >experiment with one ETD yielded wild results in FAC type measurements,
> but
> > >no detectible differences between repeated measurements of an audio tone
> > >(fundamental) from an electronic digital source.  ( a Korg Digital Tuner
> > >DT-1 from about 1987).  From that I conclude the ETD, (a share ware
> version
> > >of TuneLab97) and the Korg are extemely stable in producing and detecting
> > >the fundamental.   ---ric
> > >
> > >
> > >----- Original Message -----
> > >From: Don <pianotuna@accesscomm.ca>
> > >To: <pianotech@ptg.org>
> > >Sent: Tuesday, February 05, 2002 10:49 AM
> > >Subject: Re: Piano acoustics
> > >
> > >
> >
> >




--
Richard Brekne
RPT, N.P.T.F.
Bergen, Norway
mailto:rbrekne@broadpark.no
http://home.broadpark.no/~rbrekne/ricmain.html