Music critic Ted Giola considers the content of songs and what music critics tend to write about:

Music critics are especially ashamed of love songs. Ninety percent of pop songs are about love, as critic Dave Hickey pointed out, but critics prefer to write about the other ten percent.

I would be interested to see quantitative data for this claim. Love is a popular theme – but nine out of every ten songs? Does this mainly involve hit songs, works from major artists and labels and everyone else, and does the pattern hold across time periods? Would the music-selecting algorithms choose love songs across genres and artists? Text analysis of lyrics could look at the presence of certain words and sentiments. Analysis of music could consider whether the musical patterns in songs involving love are unique or follow particular patterns. (And then what is so different in lyrics and/or music in the other ten percent of songs?)

If the claim is true, perhaps we need music that says “Love Makes the Music World Go Around” (in addition to “Love Makes the World Go ‘Round,” “Love Makes the World Go Around,” and “Love Make the World Go Round“).