The music, The success of the popnummer will be determined by a combination of uncertainty and surprise. This is evident from international research, the results of which was published today in the scientific journal Current Biology.

A team of researchers has analyzed thousands of sequences and chords (without the melodies and lyrics of 745 the songs that are on the top of the charts on the Us pop Chart between 1958 and 1991. It is, inter alia, to ‘Ob-La-Di, Ob-La-Da’ by the Beatles’, ‘Red Red wine’ by UB40, and “Knowing me, knowing you” by ABBA.