moving instability

[Clyde Hollinger]

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Marcel,

This is what I understand happens.  If the weight distribution on the
four casters is different after the move, it can have a very noticeable
effect on the tuning, as you noticed.  This is why I try to avoid moving
a vertical piano after tuning it.

Regards,
Clyde Hollinger

Marcel Carey wrote:

> Hi,This morning as I was tuning two U1s in a practice room at the
> university, I used RCT for the first one and tuned the other one
> aurally. To compare afterwards, I moved the first piano so the two
> keyboards would be perpendicular to each other. To my surprise, the
> piano that I moved was flat (this is the one I did with RCT). So, I
> took some readings. In the new position,A3= -3.4¢. I returned the
> piano to it's original position and A3 went right back to 0¢....I
> never thought there could be so much difference just by moving the
> thing around.So, beware, Marcel CareyMarcel Carey, accordeur
> technicien
> (819) 564-0447
> mcpiano@globetrotter.net

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