At its heart, iTunes is nothing more than a glorified database. Its job is to search, sort, and display information, quickly and efficiently. Here, for example, are some powerful managerial tasks it stands ready to handle.
If you want to delete a song or songs—like when you outgrow your Britney Spears phase and want to reclaim some hard drive space by dumping those tracks from the Oops…I Did It Again album—click the title in the Albums pane, select the songs you want to delete from the song list, and press Delete.
Selecting songs works just like selecting files in the Finder. For example, you can select a consecutive batch by clicking the first song’s name, then Shift-clicking the last. Or you can add individual songs to the selection (or remove them from the selection) by
-clicking their names.
When iTunes asks if you’re sure you want to delete the music, click Yes. You’ll usually be asked twice about deleting a song, the first time for deleting it from a list, the second time about deleting the music file from your iTunes music library altogether. If you want your hard drive space back, click Yes to both.