I have one of those Ph. D. things too. Mine was in P. Chem. but my job title was Physicist. I was also a doctoral thesis research advisor and that of post-docs, and a world class researcher and leader in my field, but now retired. [You can check me out in 'American Men of Science'.]

But are these later revised versions really to be considered the same song? I don't consider them so. Shakespeare's 'Hamlet' isn't considered to be a version of Saxo Grammaticus' history.

I did mention a few instances of complementarity between science and the arts, but it would be impossible for any one person to try to list them all. I know that several others that contribute here (and are singers and instrument players) including Susan of DT, have professional scientific backgrounds, too.

Songs can (and for me often did) interest one in history, but they rarely provide accurate history. See, e.g., the English and Scottish early versions of "Chevy Chace" noted in my internet broadside index. The songs are practically the same until the last few verses where losses on each side are noted, then the differences become striking.