(Thank You and) C-7 with flat soundboard

[Roger Jolly]

Hi Ed,
          Before you go through a lot of work, pick the worst two side by
side notes. Remove the 3 lengths of string, polish the pressure bars with
emery paper, restring and evaluate.
You may be able to steal a couple of thou of down bearing by tightening the
plate bolts.
If the hammers have been reshaped, the C7's take quite a bit of needling to
get the tone to sing.
Usually this model responds extemely well to steam, high on the shoulders.
Just a thought?
Roger



At 05:41 PM 12/10/99 -1300, you wrote:
>Dear List:
>	1) Thank you for the suggestions about gluing the bentside for the
>harpsichord. The job is going well, and I hope to make 3 more to try all
>suggestions!
>	2) Back to the real world of state university music departments:
>	This year we have a "temporary" recital hall while the old one is being
>rebuilt.  The piano is a 25 year old Yamaha C-7.  The soundboard in the
treble
>end is flat.  There is downbearing from the front of the bridge to the capo
>bar, but no downbearing from the back of the bridge to the aliquot bars on
the
>plate.  The tone of the capo section is about like a banjo, half submerged in
>the swamp.  The students will have to play their recitals on this thing all
>year.
>	I'm wondering what would happen if I restrung the capo sections and
>replaced the aliquot bars with something thinner to produce downbearing at
the
>back of the bridge.  My feeling is that it might improve the sound for a
while,
>then eventually collapse.  If it got us through the year, that might be o.k.
>	Ideas will be appreciated! Thanks.
>		Ed Sutton
>		Keyboard Technician
>		Northeast Louisiana University
>		now upgraded to
>		University of Louisiana at Monroe!
> 
Roger Jolly
BaldwinYamaha Piano Centre
Saskatoon and Regina
Saskatchewan, Canada.
306-665-0213
Fax 652-0505