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Not a traditional streaming service, but Plex offers sonic analysis: https://support.plex.tv/articles/sonic-analysis-music/

> Plex Media Server uses a sophisticated neural network to analyze each track in the music library, cataloging a wide variety of characteristics of the track. Think of it as things like female vs male, vocals vs not, sad, happy, rock, rap, etc. All these various characteristic constitute a “Musical Universe” and the server is determining where that particular track exists within it.

> For the math-savvy, the Musical Universe consists of points in N-dimensional space. But what’s important is that this allows us to see how “close” anything in your library is from anything else, where distance is based on a large number of sonic elements in the audio.

I haven't tried it so can't speak to its effectiveness.



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