Which music product launch featured artists giving away their album for free to all iTunes users, revolutionizing digital album release strategies?

Test your knowledge about groundbreaking product launches in the music industry that changed how we consume music. These innovations didn't just introduce new technologies - they transformed business models, consumer behaviors, and artist promotion strategies. How well do you know the pivotal product launches that reshaped the music retail landscape?

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U2's 'Songs of Innocence' (2014)
Radiohead's 'In Rainbows' (2007)
Beyoncé's self-titled album (2013)
Jay-Z's 'Magna Carta Holy Grail' (2013)