Which pricing model did Spotify first introduce in 2008 that revolutionized the music industry and became standard for most music streaming services?

The music industry has undergone dramatic transformations in how consumers access and pay for content. From vinyl records to digital downloads to streaming services, pricing strategies have evolved significantly. This trivia question tests your knowledge about a pivotal pricing innovation that changed how millions of people consume music today. Do you know the business model that revolutionized the industry?

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Freemium (free tier with ads + premium subscription option)
Pay-per-song streaming (micro-transactions for each listen)
Family plan subscriptions (multiple accounts at discounted rate)
Tiered audio quality pricing (higher price for better sound)