Apple Logic Pro 9 - Manual (Page 1103)

• -1- (0 to 127): Defines the first data byte of the event. In some cases, such as pitch bend,
this is an actual data value. In other cases (MIDI controllers), this indicates the controller
type (volume, pan, and so on). In other cases, such as aftertouch, this byte is unused.
Setting the -1- Parameter and Fader Position
This section outlines each of the -1- parameter options, and explains how the fader
position affects them (for both the Input and Output definitions).
• Note On: The -1- parameter sets the pitch, and the fader position sets the velocity. This
is most useful as an Input definition, for trapping specific notes and converting them
to other MIDI events, or simply monitoring their velocity. If you move a fader with an
Output definition set to Note On, a note off MIDI event immediately follows the note
on. This might be useful for creating onscreen drum pads from button style faders, for
example.
• P-Press: The -1- parameter sets the pitch, and the fader position sets the amount of
Poly Pressure (key pressure or polyphonic aftertouch).
• Control: The -1- parameter sets the MIDI controller number (the controller type), and
the fader position sets the controller value. The controller type can actually be selected
by name, via the pull-down menu that appears when you click-hold the 1- parameter.
• Program Change: The -1- parameter is ignored. The fader position determines the
program number.
• C-Press: The -1- parameter is ignored. The fader position sets the channel pressure
(monophonic aftertouch) amount.
• PitchBd: The -1- parameter sets the pitch bend LSB, and the fader position sets the
MSB. Typically, you would set the -1- parameter to 0, and use the fader to control the
coarse pitch bend amount. A -1- setting of 0, and a fader position of 64, results in no
pitch bend.
SysEx and Switcher/Meta are special functions of the faders.
Fader Functions: Range, Value As
These parameters determine the minimum and maximum values of a fader, and how the
fader displays these values.
Range
The range parameter contains two numbers—the left one sets the lowest possible fader
value, and the right one sets the highest. Note that these limits can be exceeded by MIDI
remote control. When the fader style is a button, the range determines the in and out
position values of the button.
For text style faders, the first name always corresponds to the low end of the range, and
subsequent names correspond to incremental range values, up to the top range. The
number of names that can be entered into the window is limited by the range.
1103 Chapter 37 Environment Objects Reference