Logic Pro 9 User Manual - Help Library - Apple

Understanding the Parent-Alias Region Relationship
If the data in the original region is altered, all aliases of the region are affected immediately.
Aliases are useful in the following situations:
• If a riff or phrase reoccurs throughout an arrangement, it’s quicker to use aliases, rather
than creating copies of the original region.
• If a part is not quite right, you only need to alter the original, and the correction takes
effect automatically throughout the whole arrangement.
If, however, you want to alter a detail at one point in the arrangement (a pitch-shifted
verse, for example), you can turn that particular alias into an independent region (a region
copy).
Aliases do have a level of independence from their parent region:
• Aliases have their own set of region parameters.
• Aliases can be individually named. Alias region names are shown in italics. If you name
an alias region, its parent region name is shown below the alias name (provided that
the zoom level is adequate).
Any changes made to the parent region name are reflected on all alias regions.
Note: MIDI region aliases cannot be edited. If you double-click an alias, Logic Pro assumes
that you either want to edit the original, or turn the alias into a real region. You are asked
whether you want to create and edit a real copy, or to edit the original.
Creating MIDI Region Aliases
Aliases can be created for MIDI regions and folders. The term region refers only to MIDI
regions and folders in this section.
Note: Only cloned audio regions (or independent region copies) can be created for audio
regions. (See Creating Region Clones.)
To create an alias
Do one of the following:
µ Option-Shift-drag the region to the position for the alias.
µ Select the track you want to create the alias on, position the playhead, select the region
you want to create an alias from, then choose MIDI > Alias > Make (or use the Make Alias
key command).
Chapter 13 Creating Your Arrangement
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