Apple Logic Pro 9 - Manual (Page 400)

The alias appears on the selected track, beginning at the current playhead position.
If several regions are selected, their relative time and track positions are retained. The
selected track is the destination track for the first region along the timeline.
You can also use the Repeat Regions command. (See Creating Multiple Copies of Regions .)
Reassigning MIDI Region Aliases
You can assign a new original region to an existing alias. This is exceptionally handy for
arranging tasks where the structure is right, but the part is wrong. You can copy a region
to the appropriate position on a new track, create an alias, mute the existing region, and
click Play, or use the far simpler method below:
To reassign an alias
1 Select both the alias and the intended new original region.
2 Choose MIDI > Alias > Re-Assign (or use the Reassign Alias key command).
Searching for Original or Alias Regions
If you forget where the original is for a certain alias, you can search for it.
To find and select the original region of an alias
µ
Select the alias, then choose MIDI > Alias > Select Original (or use the Find Original of
Alias key command).
To find any aliases you’ve made from a region
µ
Choose MIDI > Alias > Select All Aliases of Region (or use the corresponding key command,
default assignment: Shift-A).
All existing aliases are found, and selected.
Selecting and Deleting Orphan Aliases
If you delete a source region that one or more aliases was derived from, Logic Pro asks if
you want to convert the aliases to independent MIDI regions, or keep the aliases.
• Click Cancel to cancel the procedure.
• Click Convert to change all alias MIDI regions into real copies.
• Click Keep to delete the parent region, and retain all (orphaned) alias regions. Although
such orphan aliases serve no useful purpose, Logic Pro doesn’t automatically delete
them, as you might decide to reassign them to new originals at a later stage.
If your project file contains several unneeded aliases, you can quickly tidy up by selecting
and deleting all orphan aliases.
To select all orphan aliases
µ
Choose MIDI > Alias > Select All Orphan Aliases (or use the corresponding key command).
400 Chapter 13 Creating Your Arrangement