You can definitely not write a song about the steam tables.

Wrong! There is a "well known song hardly anyone remembers" in a few frat songbooks at more than one engineering school, dating to the '40s apparently. (Keenan & Keyes Steam Tables 1945 was the last revision, but the original came out ca. 1936) In fact, Dr. Keenan once made reference to it, with a short quote from the lyric, in a lecture I attended. Quite a few sang along.

I have not, thus far, heard of one about the Gas Tables (Keenan & Kaye 1948), but it probably exists. (Maybe Spaw could consult if he would read the book.)

The lyric, unfortunately, was not sufficiently memorable for me to be able to quote any of it, although I recall references to enthalpy and entropy, and possibly some babble about "the critical point" somewhere in there.

Somewhat similar, although a little more complex, to Lehrer's "The Elements," now some dozen (or more) verses short due to new discoveries.

From very early in this thread: no one has yet had the nerve to try to enter the mind of one of the butchers of Srebrenice? ???

On a lesser scale perhaps, but still genocide(?), one might suggest The Rape of Glencoe relating the story of the complete annihilation of the entire clan of Mac Donald. (Although I recall running into a few remnants who must not have been home at the time.) The song is from the viewpoint of the victims, but the historical records I found certainly get into the minds of the malefactors, and "the other side of the story" might be quite feasible under some circumstances.

The hard ones seem more tenable as they move further into our past(?) - or farther from our homes(?).

John