<html> <body> Barbara, If the temperature/humidity is very much different, I'd insist on at "least" the day before. Preferably with the lid left up during that time. With our harpsichords, I always try and get them into whatever hall at least the day before. Then if possible, I go in that day and open the lid for a few hours before I have to tune it. Thankfully, I don't really have much of this kind of problem! I guess I'm lucky! Avery At 04:10 PM 3/23/04, you wrote: <blockquote type=cite class=cite cite>Greetings helpful folks!   In my previous life, the concert instruments were stored in nice boxes right off the stage.  There really wasn't much of a problem with tuning stability other than the normal seasonal swings in humidity (that is, after the thermostat was fixed).  :-)   The big, dead hall stores its pianos on a different level of the building than the stage.  Accepting the fact that this is where the pianos are stored for now (and I'm not sure when or even, IF that can be changed), how long in advance would you recommend they be brought up to the stage?   The reality is, this is a busy place and "ideal" is probably never going to happen.  I figure that even a day in advance would be better than what has been done in the past--which has been the move taking place on the day of use.  Should I try for two or more days?  It seems like it would be easiest to have a policy in place so it automatically gets done and not have to make a request each time.  Thoughts?  Opinions?  What do you do?   Thanks,   Barbara Richmond, RPT  </blockquote></body> </html>