If you look at a record under a microscope, the high frequencies are short jagged edges... and the low frequencies are long swinging ones are deep bass sounds. When it cut it at half speed, you're getting more of those on the record.
“When I was in high school at Northeast Catholic in Philadelphia in the late '30s, I found that drawing caricatures of the teachers and satirizing the events in the school, then having them published in our school magazine, got me some notoriety.”