Which streaming innovation fundamentally transformed the music industry's retail model by shifting from ownership to access-based consumption?

The music industry has undergone one of the most dramatic digital transformations in retail history. From vinyl records to cassettes to CDs to downloads to streaming, the business models have continuously evolved. This trivia question explores how major streaming platforms have changed the economic landscape for artists and labels alike. Test your knowledge about the digital transformation that has reshaped how music reaches consumers!

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Spotify's introduction of the 'freemium' streaming model with ad-supported tier
Apple's introduction of à la carte digital downloads on iTunes
Pandora's algorithm-driven music recommendation system
YouTube's content ID system for music rights management