I agree that the jumping about from one topic to another is potentially confusing, but I actually enjoyed that as a way of weaving many strands together in a rather tapestry-like way. I am accumulating a list of albums to go and either buy or at least listen to if I can find them. I liked the way Young connected the folk music I remember in the 50s, 60s and early 70s with earlier stuff that I've only read about and with the kind of history that is evident in many of the songs themselves. I find that more interesting than the purist approach.

Incidentally, I've also bought "The Old, Weird America" to read next.