[pianotech] Humidity

[Jon Page]

I had this epiphany as well. I told them not to bother tuning the piano 
once the outside temperature dropped below the inside temp. during the 
week. For a perfprmance last week, I fortunately was able to persuade 
them to turn the a/c on two days prior.

I was tuning in a low-ceiling basement room today. The central a/c vent 
was in the ceiling over the piano. With the lid up, the cold air blew on 
the 5th octave area (I was already in oct 6). The section went 2c sharp. 
I put the lid at half-stick to block the air. Adjusted the pedals and 
returned tuning from C5 again. Raised the lid when the air was off, 
lowered it when it came back on.

 >After a few years of these chronic psychotic episodes,  I refused to 
tune the piano during the winter months.

-- 
Regards,

Jon Page