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Before I went on holiday recently I was planning to prepare a couple of happy holiday playlists using iTunes on my iMac that I would then download onto my iPhone. But, of course, I never got around to it until I found myself sitting on the plane to sunny Portugal.
When I tapped the Playlist button on my iPhone I discovered two playlists that were already there. The Purchased playlist is compiled automatically by the Music app to keep track of the songs you buy, while the 70s playlist was one that I created on the iMac during a bit of a retro phase recently. Read: Explore the new features coming with iTunes 12