The Ubuntu One project gradually acquires a variety of functionality. From the very beginning, the service allowed you to store music downloaded or purchased in Rhythmbox. Now you can listen to your "cloud" music directly on Android devices. Tellingly, only the MP3 format will be supported, while nothing is promised about the same Ogg Vorbis. Although, "We are evaluating methods to increase support for OGG, AAC, FLAC, and other audio formats."
The public beta of the application is open for comprehensive testing of users of Android phones and Ubuntu One account holders (including the free option).
During testing, the Ubuntu One mobile-music service will be free. After the beta period, streaming audio will become a paid feature, but the details and future cost of the service are not yet known. ')
Learn more at the project wiki page wiki.ubuntu.com/UbuntuOne/MusicStreaming .