Here are two arrangements of "Popularity" by Cohan, a great piece in my opinion.
The first is the "official" published version by F. A. Mills, the second a manuscript version by Fred Van Eps. I find it interesting to compare the two.
I am going to toss this in my "to work on" pile but I don't expect I will get to it before the rally (too much brushing up standards and working on accompaniment) but I plan on sort of combining the two (I recently did this with Bob Darch's 1966 hit "Calliope Rag" taking from multiple arrangements- all manuscript).
Too bad we can't turn up Vess Ossman's arrangement. It would be nice if his manuscripts were extant and someone would share them.
https://archive.org/details/popularity-march-and-two-step-cohen-how...
https://archive.org/details/popularity-george-m-cohan-fred-van-eps-ms/