Which groundbreaking recommendation algorithm, introduced by Spotify in 2015, revolutionized personalized music discovery by analyzing audio characteristics rather than just user behavior?

Music streaming services have transformed how we discover new artists and songs. Behind these platforms are sophisticated recommendation systems that analyze our listening habits and suggest new music. This poll tests your knowledge about one of the most significant innovations in music retail technology that changed how listeners find and consume music in the digital age.

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Echo Nest
BeatMatch
SoundSense
Harmony Engine