While I was teaching myself electronics over the course of a year or so, I would listen to the classic rock station as background music. After about a month of

While I was teaching myself electronics over the course of a year or so, I would listen to the classic rock station as background music. After about a month of listening I noticed I could tell which song would come next. Their playlist was about 48 hours. There are only so many classic rock hits after all. When Do It Again would play, it felt like that was the start of the playlist.