Apple Logic Pro 9 - Manual (Page 354)

To check the number of times a region is used in your arrangement
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Choose View > Show Region Use Count.
Creating and Removing Regions
When you add an audio file to your project, Logic Pro automatically creates a region that
encompasses the entire file length. You can create as many regions as you like from the
same audio file. There are no length limitations to regions, as long as they don’t exceed
the length of the source audio file.
Creating multiple regions from the same audio file is beneficial for many tasks, such as
using different portions of a vocal take that spans the length of the project, for example.
You can create regions in the Audio Bin, the Sample Editor, and the Arrange window.
This section concentrates on the Audio Bin and Sample Editor options.
Note: Full details on all Arrange window region editing options are found in Creating
Your Arrangement .
To create a region from an audio file in the Audio Bin
Do one of the following:
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Select an audio file in the Audio Bin, then choose Audio File > Add Region (or use the
Add Region key command, default assignment: Control-R).
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Choose Edit > Copy (Command-C) in the main menu bar, then choose Edit > Paste
(Command-V).
The new region appears below the existing region(s) in the list.
Each region is assigned a unique numerical appendix. For example, organ.wav is the
parent audio file. The automatically created region is simply called organ, and newly
created regions are called organ.1, organ.2, and so on.
To create a region from an audio file in the Sample Editor
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Choose Edit > Create New Region (or press Command-R).
The newly created region appears in the Audio Bin list.
To delete a region from the Audio Bin
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Select one or more regions, and press Delete.
Removing a region does not remove the parent audio file.
To remove an audio file from the current project
1 Select the audio file name (not a region name) in the Audio Bin.
2 Choose Audio File > Delete Files (or use the corresponding key command).
This deletes the file from the project, but not from the hard disk.
354 Chapter 12 Getting to Know Regions