Apple Logic Pro 8 User Manual
Page 431
Chapter 17
Editing MIDI in the Hyper Editor
431
 P-Press (Polyphonic Pressure): As above, but each note can be independently
modulated.
 Program Change: To define a lane that is used to create and send MIDI program
change events, allowing you to switch between sounds (electric piano and clavinet,
for example) midway through a region.
 Pitch Bend: To define a lane for pitch bend information.
Important:
The choice made in the Status line directly affects the behavior (and
appearance) of the First Data Byte parameter.
As an example, if Note is chosen in the Status parameter line, you can use the first data
byte to determine the pitch (MIDI note number) of the selected event definition lane. If
the MIDI region is played by a mapped instrument, a pop-up menu of input note
names (drum sound names) appears here.
Using the First Data Byte Parameter
The First Data Byte checkbox and menu is shown on the bottom row of the Event
Definition Parameter box in the Inspector. You use them to determine the value of the
first data byte (of the displayed event type).
The First Data Byte checkbox determines whether or not events with the defined first
data byte should be displayed (if on), or whether the setting should be ignored (if off ).
In the case of note events, the velocity values of all notes (regardless of pitch) would be
displayed in the relevant event definition lane.
The name of the First Data Byte parameter reflects the chosen Status parameter, as
follows:
 Fader, Meta, Control, Program: Number is shown as the First Data Byte.
 Note, P-Press: Pitch is shown as the First Data Byte.
 C-Press and PitchBd: The First Data Byte is dimmed, as it has no function.
If Control is chosen in the Status line, you can use a pop-up menu shown in the First
Data Byte parameter line, to determine the controller type (controller number).
Similarly, if Meta or Fader are chosen in the Status line, the First Data Byte menu
determines the meta or fader event type (meta or fader message number).
First Data Byte checkbox
and menu