Apple Logic Pro X User Manual
Page 474
Chapter 15
Advanced edit features
474
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Map: Most conditions are numerical relationships, and the condition is met if the incoming
MIDI event value satisfies the condition. The last condition, Map, works a little differently. Two
numerical parameters are specified, and the incoming value is first converted by the map, to
create a mapped value. The mapped value is then compared with the two parameters to see if
it falls inside them. Incoming events with a mapped value that falls within the range will fulfill
the condition—all other events will not fulfill the condition. For more information, see
on page 476.
Set the values for a selection condition
m
Use the mouse as a slider, or enter a value directly into the field.
Set operations parameters
The Operations area is used to define the changes you want to make to events that meet the
selection conditions. As with the selection condition pop-up menus, you choose an operation in
the appropriate event parameter columns. One or two value fields may appear, depending on
the chosen operation.
Define the operation for the status event parameter column
m
Open the pop-up menu, then choose one of the following operations for the Status condition:
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Thru: The event type passes through unaltered.
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Fix: The event type is altered. Choose a new event type in the pop-up menu that appears
below the Status Operations pop-up menu. Choices include fader, meta, note, poly pressure,
control change, program change, channel pressure, or pitch bend. This effectively converts one
type of event to another.
Note: When you convert note events, two events are created: one for the note on event, and
one for the note off event.
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MapSet: Choosing this setting means that events that match the Status condition (note events,
for example) are used to control the map of a subsequent operation—in the Channel, Data
Byte 1, Data Byte 2, and Length columns.
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The Data Byte 1 value selects the position in the map.
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The Data Byte 2 value determines the value at this map position.
Internally, Logic Pro sends a meta event pair: #123 for the position, and #122 for the value at
this position. These types of meta events can also be created in other ways.