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The various news articles really misrepresent what the article is, I think, getting at... the study makes two points, not one, and I think both are important:
1) If you do all sorts of crazy scientific measurement stuff of tone/pitch, timbre, and loudness in popular music *over a fifty-five year period*, you see a very stable "language" or set of patterns that are very consistent across genre and time. The researchers assert that this "points to a great degree of conventionalism" in western pop music, which makes sense. That sort of abstract language becomes a sort of standard amongst listeners, and music is judged by *both* how it fits within and varies from the standard. I don't think the researchers are making any value judgement here, but rather trying to understand consistencies in the structure of pop music: in other words, what makes pop music pop music?
2) The second point is what the media has picked up. I'll quote that passage in full: "Much of the gathered evidence points towards an important degree of conventionalism, in the sense of blockage or no-evolution, in the creation and production of contemporary western popular music. Thus, from a global perspective, popular music would have no clear trends and show no considerable changes in more than fifty years. Pitch codeword frequencies are found to be always under the same underlying pattern: a power law with the same exponent and fitting parameters. Moreover, frequency-based rankings of pitch codewords are practically identical, and several of the network metrics for pitch, timbre, and loudness remain immutable. Frequency distributions for timbre and loudness also fall under a universal pattern: a power law and a reversed log-normal distribution, respectively. However, these distributions' parameters do substantially change with years. In addition, some metrics for pitch networks clearly show a progression. Thus, beyond the global perspective, we observe a number of trends in the evolution of contemporary popular music. These point towards less variety in pitch transitions, towards a consistent homogenization of the timbral palette, and towards louder and, in the end, potentially poorer volume dynamics."
I don't really read this as saying "all new music sounds the same," which is how the media is interpreting it. Rather, the language that popular music uses today - and remember, that language is necessarily built on conventions - is less varied *when compared to a larger set of data that had already confirmed the presence of a relatively stable musical language*.
In other words: yes, pop music might be trending toward "homogenization" in some ways, but that doesn't mean "it all sounds the same" ... it means the frequency and diversity of elements that are used in the structure of a given song, and the way a listener might perceive it, have changed.
-thebigfunk
~ i could still snort you under the table ~
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