Netflix might choose Amazon's cloud service over Google's, but Mountain View's Cloud Platform has scored a big customer of its own. Spotify has announced it's moving the technology that runs its music streaming service to Google Cloud Platform. According to The Wall Street Journal, Spotify will continue using Amazon's Simple Storage Service to store its music files. Further, it will still deliver music via its partner content-delivery services, such as Amazon's CloudFront. But it's migrating its core computing infrastructure (or its backend), which it uses to store and process data, from its own data centers to Google Cloud Platform. In fact, it's already done transferring 250,000 accounts out of 75 million users overall and will be done with the move in a year and a half.