Apple Logic Express 7 - Manual (Page 442)

442 Chapter 16 The Transform Window
Exchanging Parameter Values
You can replace the value of each of the three event parameters: Cha, -1-/Pitch and -2-/
Vel with the value of a different parameter from this group. Click on the lines between
the Conditions and Operations fields to change the source for the parameter value.
Note that the value is exchanged first, and then the operation is performed.
Operations
The bottom part of the window (Operations) defines the changes to events that meet
the Conditions, and offers separate columns for each MIDI event parameter.
The Thru setting in the top box means that the relevant event type passes through
unaltered, making the other boxes in the same column superfluous.
Status Operations
Thru
The event type passes through unaltered.
Fix
The event type is altered. Clicking in the box below opens a pull-down menu, where
you can choose between; note, poly pressure, control change, program change,
channel pressure, or pitch bend.
Operations on the Values of Position, Cha, -1-/Pitch, -2-/Vel, Length,
Subposition
For all parameters (except status), the top box determines the type of operation that is
performed, using the values defined in the boxes below (referred to as the “set value”
below). The following operations are identical for the channel and the first or second
data byte, with the value ranges being automatically adjusted in the boxes below.
Fix
The parameter is fixed to the set value.
Add
The set value is added.
Sub
The set value is subtracted.