Apple Logic Express 9 - Manual (Page 326)

To switch between browsing views
µ
Click one of the view buttons at the top-right corner of the Loop Browser.
The left button activates Column view, the middle button activates Music view, and the
third button Sound Effects view.
Music view displays a matrix of 54 buttons, each featuring a musically related category.
Sound Effects view offers effect-related category buttons such as Explosions, Foley, or
People.
Music view Sound Effects view
326 Chapter 11 Adding Prerecorded Media