Apple Logic Pro 9 - Manual (Page 326)

To access the Loop Browser in the Arrange window
µ
Click the Media button in the Arrange toolbar, then click the Loop tab (or use the Toggle
Loop Browser key command, default assignment: O).
Understanding Green and Blue Apple Loops
The Loop Browser contains two types of Apple Loops: those featuring a blue sound wave
icon and those with a green note icon.
Green and blue Apple
Loops in the Loop
Browser
Both contain audio data, and both can contain additional information for time stretching,
transposition, indexing, and searching.
326 Chapter 11 Adding Prerecorded Media