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I just searched for "yer blues" by The Beatles. Different mixes of the same exact studio recording have different keys and BPMs listed. I could perhaps understa

I just searched for "yer blues" by The Beatles. Different mixes of the same exact studio recording have different keys and BPMs listed. I could perhaps understand if it gets the demo versions wrong, but when subtly different remasters/mixes of the same exact source material result in wildly different output, I don't see how this data can be trusted at all. Was that just one freak result out of a million correct ones...?

alin23 5y ago
The data comes from Spotify’s Track Audio Features API. [1] [2] I believe this data was imported from the EchoNest project when Spotify acquired them [3] and it’s possible that algorithms have improved since 2014 but not all old tracks have been re-analyzed. I would guess that this is what’s causing the discrepancies you’re seeing. [1] https://developer.spotify.com/console/get-audio-features-track/?id=11dFghVXANMlKmJXsNCbNl https://developer.spotify.com/console/get-audio-features-tra... [2] https://cln.sh/TfGPcj https://cln.sh/TfGPcj [3] https://en.wikipedia.org/wiki/The_Echo_Nest https://en.wikipedia.org/wiki/The_Echo_Nest