Music Beta, launched at Google I/O in May, a service that lets you upload your personal music collection to the cloud and listen to it on the web or your Android phone or tablet. It’s been awhile since we’ve heard of anything “big” from Google Music (still in beta) and it seems like Google is starting to take steps toward making the service more discovery-based with the launch of Magnifier, a music blog for users of Google Music Beta.

Magnifier is a new music discovery site that Google has launched as a compliment to Music Beta. Each day, the blog will be updated with a “song of the day” that can be added to your Music Beta account with one click. The music blog will highlight new and upcoming artists, give away free music and serve as a hub for those looking to discover new music.

Magnifier still doesn’t address one of Music Beta’s core incompetencies: there is no way to purchase music. In order to get music into Music Beta, you have to upload your own MP3s.

Looking at the blog, we’re hard-pressed to picture anyone using it, aside from Google fans that are also passive music listeners. There’s already a ton of stellar free music blogs/services (see RCRD LBL, MySpoonful and Epitonic) who have been in the music writing/curating game for much longer than Google.

Music Beta won’t be close to resembling an “iTunes killer” or even an Amazon MP3 competitor. Both of those service offer easy ways to browse and buy new music. Meanwhile, other service like Pandora, Rdio, MOG, and the just-launched-in-the-U.S. Spotify attack from the other end with music streaming.

What do you think of Magnifier? Cool idea, or bandaid for a music service. Let us know in the comment section.