If you're like many of us, you have a gazillion songs in your iTunes Library, but you only listen to a relatively small group of them on a regular basis. Or, you listen to much, most, or even all of your library, but there are some songs that you like to hear more often than others. You can rate songs in iTunes to make it easier to find your favorites; you can also use song ratings when you set up Smart Playlists.
Assign a Song Rating in iTunes 10
To assign a rating to a song, select the song in your iTunes Library. From the File menu, select 'Rating,' then from the pop-out menu, select a rating from one to five stars.
If at some point you go off a song, or a song you didn't like all that much to begin with suddenly grows on you, you can change a rating at any time. You can also switch from a star rating back to None (the default), if you want to.
Sort Songs by Their Rating
You can use the Rating column in the iTunes Library window to view the ratings you assigned to songs. To sort songs by their rating, just click the Rating column header.
You can also assign or change a rating from the Rating column. Right-click on the song whose rating you want to assign or change. From the pop-up menu, select Rating, then from the pop-out menu, select the rating you want to assign, from none to five stars.