Fathom is meant to be a playful, immersive environment for exploring and discovering new music. It uses artist and album recommendations from Last.fm and plays music from Rdio.

If you're logged into the Rdio site, you should hear full tracks. Otherwise you'll hear 30 second samples.

Fathom was conceived and created by Ian Gilman, with design by Kevin Hanes.

Click on albums to play them (they'll move to the center position). Use the Q button to queue albums up to play in sequence. Once the queue runs out, albums will be played at random.

Space bar plays/pauses. Right and left arrow keys take you to the next and previous tracks, respectively.

If you're logged into the Rdio site, you should hear full tracks. Otherwise you'll hear 30 second samples.

For technical support, go here.

Fathom gets the tracks it plays from Grooveshark, which in turn gets them from user uploads. These tracks are sometimes misnamed or filed under the wrong album. Some albums don't have all of their tracks available. It just depends upon what's been uploaded to Grooveshark. If you'd like to improve things, you can upload new tracks to Grooveshark and/or flag incorrect song info there.

The Fathom bookmarklet starts a new Fathom search with the artist from an artist or album page on either Rdio or Last.fm.

To install, drag this --> +fathom <-- to your bookmark bar (just below the URL bar in your browser).

Fathom is still in early development. You can file bugs on github.

Fathom is built with Google App Engine and jQuery, using APIs from Last.fm and Rdio.

Now that you have a Fathom account, what can you do with it? Well, not much yet.

In the future you'll be able to scrobble to Last.fm, save your favorites here in Fathom, etc... Fathom is a work in progress!