Most iTunes users probably already know that you can edit information for multiple tracks simply by selecting them all and choosing File, Get Info. However, this only works if you need to apply the same information to all of the selected tracks.
If you’re updating tracks individually, such as to correct song titles or track numbers, you’ll find the multiple item editor to be less useful. However, iTunes does offer a useful shortcut for quickly moving between tracks without leaving the edit window.
Instead of clicking “OK” when you’re finished editing the information for a selected track, you can use the buttons found in the bottom left corner of the editing window to simply pull up the information for the next or previous track, and better yet, iTunes provides shortcuts for these buttons: CMD+N and CMD+P respectively on a Mac, or ALT+N and ALT+P in iTunes for Windows. If you simply organize your tracks in the order you want by sorting or placing them into a playlist, with these shortcuts you can quickly move through them and update your info like a pro.