When a piano is pretty darn close to being on pitch, for example A4 should cycle at 440 but there are times seasonally when it may vary to 439 or 441, it may be possible to leave well enough alone and tune the piano where it's at. This can depend on the seasonal cycle among other qualifiers. Is the piano at 439 and summer humidity is approaching and you just know it's going to settle out sharper? Or has it been raining for days before winter heating season arrives? Does it need to be exactly 440 because of use with other instruments? Anyway, none of those things applied to today's tuning. It was dead on 440.
Today was my yearly visit to tune for opening weekend at The Studio. The piano was not ready per my instructions, but at least the check was waiting for me. This is the Godzilla piano replacement. Now it's Frankenstein. The body and guts of a 1970's era, 6 ft. Kawai with the top of the 9ft., 1896 Chickering painted to look like an artist's palette! They hadn't slid the lid (and padded arm rest of the bar) back out of the way prior to my arrival. It took a couple minutes to get some guys out of the kitchen to do it. This year it was propped up on a trash can at the tail end while I tuned. Anyway, it tuned up fine. That is if you don't mind tuning pins that really don't want to budge and a disturbing rattling across 6 or so notes in the 5th octave. I think the rattling is the lid arrangement for creating the bar. I'm not dealing with that and no one but me seems to notice it! The interesting thing about tuning at The Studio is that while I'm working I can watch ripplets of waves beneath the building through holes in the floor! Tune a piano or floating pitch?