Over time and over the decades, music has and continues to evolve which comes with cultural influence, acceptance and so forth. According to Detroit Free Press (Freep), they believe that music has become angrier and sadder in recent years.
There was a study done that examined music from 1950 to 2016. "The study was conducted by a student and professor at Lawrence Technological University in Southfield." It went through about 6k worth of songs.
"The analysis showed that the expression of anger in popular music lyrics increased over time. Anger was least expressed during the mid-1950s, and increased gradually until 2015 and 2016, which were the last two years tested in the study."
Do you agree with this finding?