In addition to automatically making playlists of songs that will sound good together from the music you already have in your iTunes library, iTunes Genius can help you discover new music at the iTunes Store based on the music you already have and like.
It does this using the collective intelligence gathered by all the iTunes users running Genius, purchases at the iTunes Store, and other factors.
In order to have Genius suggest new music to you, just need to follow these simple steps.
Begin by ensuring that you’re running iTunes 8 or higher and have Genius turned on and the Genius sidebar visible (it’s visible by default. If you hid it, just click the arrow button in the bottom right corner of iTunes).
Then navigate through your iTunes library to the song you want Genius to use as the basis for your discovery of new music.
When you select a song, you’ll see the Genius Sidebar fill up with options.
