Apple Logic Express 9 - Manual (Page 323)

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.
Green and blue Apple Loops can be added to audio tracks, or directly to an empty Arrange
area or track. In the Arrange area, they look like normal audio regions, but can be easily
identified by the Apple Loops symbol in the upper-right corner. They differ from standard
audio regions in that they follow the project key and tempo.
Stereo Apple Loop
symbol
Mono Apple Loop
symbol
323 Chapter 11 Adding Prerecorded Media