From "The Value of Music that Tickles the Brain" by Kara Rogers. http://www.britannica.com/blogs/2013/04/the-value-of-music-that-tickles-the-brain/. 2013. Web.
The kinds of music that participants purchased varied, which likely reflects individual differences in our expectations of music. Our beliefs about music are thought to develop from our prior musical experiences, with sounds and sound patterns that we learn being stuffed away in our auditory cortex. Those experiences frequently are linked to emotions, too. So, when music we hear jibes with what we know or expect or draws on preexisting emotional associations, we might be inclined to like it and buy it. That, hopefully, comes as good news for those who devote their careers to satisfying our impossibly complex musical tastes.

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