How different are lyrics today than 30 years ago? A wordcloud.

So i had a thought. How different are song lyrics today from days gone by. I love the 80’s. I think the movies, the music and everything except the clothes are awesome. So, as an experiment, I took the top 5 songs in top 40 today and compared them with the top 5 songs from 1987 years ago. The result? Songs today are much more diverse lyrically and are more abstract in nature. In 1987, it was basically the same diversity, but not so abstract. The themes were very literal.