For example, if a chord is found in a song, what can we say about the probability for what the next chord will be that comes after it? The Database Then we’ll begin to look at the relationship that different chords have with one another. First we’ll look at the relative popularity of different chords based on the frequency that they appear in the chord progressions of popular music. of popular songs to discover the answer to a few basic questions. In this article, we’ll look at the statistics gathered from 1300 choruses, verses, etc. Of course, if you play an instrument or want to write songs, being aware of these things is obviously of great practical importance. But knowing these patterns can give one a deeper more fundamental sense for how music works for me this makes listening to music a lot more interesting. For many people, listening to music elicits such an emotional response that the idea of dredging it for statistics and structure can seem odd or even misguided.