bottom covers on Grands

[Don]

Hi All,

I just finished tuning my most "unstable" Yamaha G2E (#2043455) piano. It
normally exhibits swings of up to 34 cents on some notes. Well not this
year! It has had a Damppchaser on it for some years and in the fall of 2001
I installed a bottom cover--waited 3 months and then tuned Jan. 14, 2002.
Pitch correction was between 2 and 34 cents. Today one year (Jan 13,2003)
later none of the notes in the temperament octave from F3 to F4 exceeded 2
cents flat {except for E4 which was 3 cents out}(measured by RCT) and the
worst note on the entire piano was a grand total of 4.1 cents flat.

I don't think I need any more "proof" that grand installations should
always include a bottom cover.

Does anyone else have positive feed back about working "under the cover"?
*Grin*

Regards,
Don Rose, B.Mus., A.M.U.S., A.MUS., R.M.T., R.P.T.

mailto:pianotuna@accesscomm.ca
http://us.geocities.com/drpt1948/

3004 Grant Rd.
REGINA, SK
S4S 5G7
306-352-3620 or 1-888-29t-uner