Re Dirge:
I think it is taken from a classical piece, but I don’t know what it was.
I missed it and can only find a rally re-watch that starts as President Trump takes the stage to “God Bless the USA”.
Peer reviewed study from Brazil on the efficacy of ivermectin: The importance of the Itajai study cannot be understated. In a cohort of over 220,000 individuals constituting the majority of the citizens of Itajai, a Brazilian port city, ivermectin prophylactic treatment was associated with a 44% decrease in SARS-Cov-2 infection rate, a 40% reduction in hospitalizations, and a 45% decrease in Covid mortality, as crude rates prior to propensity score matching, which suggested even greater ivermectin benefit.
Found it!
It's Chopin's "Funeral March"