If you've ever noticed how all of the most popular tracks tend to follow a similar song structure, a newly released 50-year study now gives a solid explanation as to why this trend takes so many songs to the top.

Conducted by Professor Andrea Ordanini of Bocconi University in Milan and the University of Southern California, the study analyzed 2,400 songs and learned that the higher the repetition of the chorus, the more likely that the song would become a hit. The study also found that an artist's likelihood of scoring a hit song decreased as he or she aged. 

The study's findings can be seen quite easily in many EDM songs. "Clarity" by Zedd peaked at #8 on the U.SBillboard Hot 100, and the song repeats the famous chorus six different times. The Pharrell and Nile Rodgers-assisted Daft Punk hit "Get Lucky" topped #2 on the charts with seven repeated chrouses. It also makes sense why "Wake Me Up" by Avicii with Aloe Blacc became Spotify's most-streamed song of all time and topped the charts at #4: Blacc sings the chorus four times.

Count the choruses with the lyric video to "Wake Me Up" below:

The findings give empirical support to why repetitive songs go on to sell so well, but the results do not bode well for chart success of experimental songs with little repetition. 

[H/T: The Telegraph]

Cover photo credit: Rukes

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