Google has a new feature it hopes will keep Music Beta users tuned in.

The Web giant today launched Google Magnifier, a new feature to help users of its online music-storage service discover and obtain new music. In addition to free music tracks, the site has videos of live performances, artist interviews, and a chance to explore music genres.

The move is an effort by Google to distinguish its Music Beta service from competitors such as Amazon's Cloud Music and Apple's forthcoming iCloud service, which is expected to launch in the fall. Google's music-storage service, which launched in May, lets people upload their music libraries and replay them on PCs and mobile devices.

Google is kicking off the service by giving away two tracks by Grammy-nominated indie rock band My Morning Jacket to Music Beta users.