>thank you, but of course I know about humidity drop. ----------------------------- Sorry, didn't mean to belabor the obvious. >But what happened was that everything *except* the bass dropped. Spot on, >from the first bass note. >The bass is still right up to pitch and in tune. >And the rest of the piano is "relatively" in tune with itself, that is, the >lowest tenor note upwards. Did you get that? >Why would a drop in humidity not affect the bass? And donīt tell me itīs >because of longer strings :-) > >Kristinn Of course not, the strings are shorter! <G> How about less bearing (usually), bridge length and angle to the strings, tension relative to break%, magic, etc. You said A was slightly below 439, which isn't what I'd call a worrisome pitch drop at this time of year a month after the tuning. But like you said, your climate's a tad different than mine. With that small a change, I'd expect to have to maybe touch up the top couple of unisons in the bass, and maybe a couple at the monochord/bichord transition. I'd be more inclined to worry about the bass if it moved anywhere near as much as the tenor. I doubt that anything's hurt that isn't obvious on inspection, but I think it would still be a good idea to track humidity on this one for your and your customer's peace of mind. Ron N
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