Ash wrote that a better understanding of users will bring with it a slightly different user interface for Cortana. "Cortana knows that when you're on your phone, your interaction is generally going to be brief; when you're on your PC, your goals are going to be in line with steady periods of productivity," Ash wrote. "We've developed new visions and new scenarios meant to make life easier, and more fun, regardless of the device you're using."
Why this matters: There's nothing preventing users from storing MP3 files in OneDrive, Dropbox, or any other cloud storage. But accessing them usually means clicking a single file and/or downloading it once again. Google allows you to store your own MP3s in the cloud; Apple also "matches" songs you've ripped in iTunes. Adding this capability would help Microsoft catch up to the other services.
What Ash seems to be saying, however, is that a family will be able to share songs, much in the same way that a family can share games on an Xbox One. Sure, you can maintain a communal server of music that anybody with the right password can tap into. And let's face it: Doing a quick copy of your sister's MP3 collection takes a few minutes. But it's still a convenience that rival services don't offer.
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