Vertical tuning pins on upright

[Don]

Hi,

I've always thought that the pin block or pin in the block rotates in the
direction of the force placed on it and that this effect is affected by
humidity swings. Flag poling a la humidity change?

At 11:18 AM 7/17/2005 -0300, you wrote:
>Wouldn't that indicate that it was the pin turning?
>With the screw stringer, staying in tune for a apparently much longer time, 
>it would indicate that it was the turning of the pin that was having a 
>greater effect?
>John M. Ross

Regards,
Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T.
Non calor sed umor est qui nobis incommodat

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