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> For example, we can compare variance in song energy and danceability for U2, ABBA, and Katy Perry, then rank these artists against each other. According to this subset of variables, ABBA's discography offers greater sonic variety than U2's or Katy Perry's.

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Why? I'm not a music person so can't pick up on what you're signaling here

My guess is that trying to measure music in these contrived metrics miss the whole point of why people like or dislike certain bands. At least that is how I took it.

I seriously doubt ABBA, who stuck with the Disco sound through most of their careers, has more "sonic variety" than Katy Perry's genre salad albuns like 'Prism'.

Fleetwood Mac changed their sound a couple of times and they are at the bottom of the ranking as well. Just shows how hard is to measure stuff like this

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