About the middle of winter you'd have to apply a lot of heat to get those pianos to do a pitch raise from A-432 to A-440 here abouts...and then with folks using those auto-setback thermostats... cutting temps back over night by 15 degrees... Probably some control like a dampchaser to keep the strings heating up/cooling down cycles would really do the trick... 100% dealer trade-in comes to mind... <grin> Richard Adkins
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