Which innovative big data approach has NOT been widely adopted by major music streaming platforms to enhance customer engagement?

The music retail landscape has undergone dramatic transformations in recent decades. From vinyl record stores to digital streaming platforms, how we purchase and consume music has evolved alongside technological advancements and changing consumer preferences. This trivia question explores how big data analytics has revolutionized music retail strategies and influenced the industry's approach to consumer engagement.

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Neural network-based mood detection that categorizes songs by emotional response rather than genre
Collaborative filtering algorithms that create personalized recommendations based on listening patterns of similar users
Biometric data integration that tailors playlists to users' heart rate and physical activity levels
Audio fingerprinting technology that analyzes sonic characteristics to suggest similar but lesser-known artists