Which music streaming service first implemented the machine learning technology that could analyze acoustic features of songs (like tempo, key, and mood) to create personalized recommendations?

The music industry has been dramatically transformed by artificial intelligence and machine learning technologies. Streaming platforms now leverage advanced algorithms to analyze listening patterns, create personalized recommendations, and even predict hit songs. This poll tests your knowledge about how machine learning is reshaping music consumption, discovery, and production in the digital age.

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Spotify with its Echonest acquisition in 2014
Apple Music with its Shazam integration in 2018
Pandora with its Music Genome Project in 2000
Amazon Music with its Alexa voice recognition system in 2016