Russian folk and revolutionary songs.
You can tell they are songs because the picketers were singing as they marched.
Piggy's glasses symbolize power and intelligence since while he is not physically fit and healthy, his intelligence makes up for it, making him one of the smartest characters in the story. It also shows power since Piggy's intelligence helped him help the other characters survive.
His satire is aimed at the "hypocrisy" of making an adventure appear more glorious than it was. He is trying to say that there is nothing glorious about war, there is only death and suffering, and it is definitely not a pretty sight.
For Apex its "A poet writes a poem from the Minotaur's point of view after viewing Dore's illustration of the Minotaur from Dante's Inferno.