The Future of Digital Music...Maybe

I've quickly grown accustomed to having instantaneous access to the entirety of human knowledge pretty much anywhere and at any time (otherwise known as googling from a smartphone). But you know what feature of the magical unfolding digital future really blows me away? The fact that, in my house, I can say "Alexa, play Led Zeppelin," and start irritating my children within seconds. Alexa is the pleasant personality baked into Amazon's Echo Bluetooth speaker; she's staring at me right now from the kitchen table, breathlessly listening for her name. Google just announced a similar product called Home, and Apple's Siri can pull this off, as well.