Which innovative feature did Spotify first introduce in 2015 that fundamentally changed how subscription streaming services marketed music discovery?

The music industry has undergone massive transformation with subscription-based streaming services dominating how people consume music. This shift has created new business models, changed artist revenue streams, and transformed music marketing strategies. Test your knowledge about how subscription models revolutionized the music industry and created new paradigms for artists, labels, and consumers.

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Discover Weekly personalized playlists that used machine learning to curate songs based on individual listening habits
Family Plan subscriptions that allowed multiple household members to have individual accounts under one payment
Direct Artist Submission tool allowing independent musicians to submit tracks directly to playlist curators
Tiered subscription model with free ad-supported and premium ad-free options