Which pioneering e-commerce innovation first allowed consumers to purchase and download individual songs instead of entire albums, fundamentally disrupting the music industry's traditional sales model?

The digital revolution has transformed how music products are sold and distributed. From physical record stores to streaming platforms, the e-commerce landscape for music has undergone remarkable changes. This trivia question explores a significant turning point in music retail history that changed consumer behavior and industry business models forever. Test your knowledge about the evolution of music product distribution!

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Apple's iTunes Store (2003)
Napster's Premium Service (2001)
Amazon MP3 Store (2007)
Microsoft's Zune Marketplace (2006)