Which music product development innovation led to the largest single-year increase in industry revenue in the 2010s?

The music industry has undergone massive transformations in how products are developed and delivered to consumers. From vinyl records to streaming services, the way we consume music has changed dramatically, influencing how music products are conceptualized, created, and marketed. This trivia question explores a pivotal moment in music product development that changed the industry forever.

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Bundled streaming subscriptions with mobile phone plans
Smart speaker integration with music streaming services
High-resolution audio formats for audiophiles
Vinyl record revival with digital download codes included