The more a song can find ways to repackage the chorus without people being bored the better the song is.
Quote:
For each repetition of the chorus, a song’s likelihood of making it to number one increases significantly, according to researchers who analysed more than 2,400 songs released over 50 years.
Chorus repetition is a winning formula because repetitive songs are processed by the brain more quickly, according to Professor Andrea Ordanini, of Bocconi University, Milan.
They found that for each additional repeat, a song’s likelihood of making it to number one increased by 14.5 per cent. But it decreased by 6.1 per cent with each additional year in the age of the main performer.
More repetitive songs rose more rapidly. The chance of a song going straight into the top 40 increased by 17 per cent for each repetition. Neither the gender of the singer nor the tempo made any difference.
The two most repetitive number one songs per decade .
In each, the chorus was repeated more than seven times.
60s
Marty Robbins - El Paso
Zager and Evans - In The Year 2525 (Exordium and Terminus)