This move costs them money, by the way, as more users means more royalty payments. Since it's launch, artists have consistently grumbled over the fractions of a cent the service pays them for streams, but even that pittance adds up. Hoping not to quell their rapid growth (the company is rumored to have been valued at 3.5 billion already!) they are instead trying to raise capital to keep the gravy-train rolling. Listeners are probably going to have to pay sooner or later, but not yet. So keep that habit a-forming.
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