Here's a really extreme example - but note that this song is intended to be comedic, and most of the rest of the album (indeed even the tracks before...
Bach is literally one thousand times more popular than Carter, according to the above figures, 67 times more popular than Messaiean and 50 times more...
As for accidentals, why does Schoenberg/Berg/Webern include naturals, or why are they included in newer prints? It makes no sense. With newer music,...