Is it true that the OC has never been performed all the way through since it was written?
I'm assuming that this and your other questions below aren't meant to be taken seriously in the context in which you have written them and that you probably know rather more than they suggest you do, but just in case this is not the case, the answer to this one is "no" and those to the others are as below.
As I understand it, the "Symphonia Antarctica" of Ralph Vaughan Williams has only been performed twice in the many decades since it was written. Has to do with the truly enormous orchestra required, plus bizarre additions such as wind machines.
You don't understand much, then, about the piece, its performance history, its scoring or even the ease of availability of wind machines; some might even suggest that there are quite a few of those right here on this forum, indeed. I do believe that it has to date had very few performances in Antarctica itself, however - due not so much to an absence of wind machines as a shortage of penguins to conduct it...
For a piece that takes 22 hours to play, would a tuner rush in after each movement to touch up the unisons?
Presuming you to mean a solo piano piece of that unprecedented duration, I think that we should all have to wait for one such to be written and performed at least once in order to come up with any meaningful answer there, don't you? Perhaps, while we wait, you might like to speculate as to whether a tuner would rush in to touch up the pianist...
When would the performer go to the bathroom?
Well, after he/she had finished any given stint of uninterrupted playing, of course (and see below); playing such a piece in a bathroom might possibly provide a suitable alternative, especially as certain concert halls already have those kinds of acoustic.
Would the pianist have to wear one of those bus-driver devices to eliminate the need for a pee-pee break?
You mean what's commonly called a "leg-bag"? Well, I've never yet seen a pianist wearing one of those during a public performance, but then the longest I've ever observed a pianist performing on a stage uninterruptedly was the 2½ hours or so that the pianist that mustn't be mentioned (see above, if you need to) took to play parts 1 & 2 of the work that similarly mustn't be mentioned in London in 2003 - a duration which can presumably be otherwise planned for in advance by any pianist, provided that he/she does not suffer from certain kinds of renal condition...
Well, I'm burned out.
What? - just by the effort it took you to write that? Amazing! I don't think you'd have the stamina to play "that" piece, then...
Carry on, all.
I have little doubt that we will.
Best,
Alistair