Which music streaming platform was the first to introduce a 'pay-per-stream' model where artists earn royalties based on the exact number of times their songs are streamed?

The music industry has undergone radical transformations in how artists get paid for their work. From physical media sales to streaming royalties, payment systems have evolved dramatically over the decades. This poll tests your knowledge about an innovative retail payment system that changed how consumers access music. Do you know which platform pioneered a revolutionary approach to music monetization?

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Spotify (2008)
iTunes (2003)
Pandora (2005)
Napster (after its 2003 legal relaunch)