Apple Logic Pro 7 User Manual Page 638

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638 Chapter 21 Song Settings and Preferences
Control Changes
If this switch is active, you can switch three groups of MIDI controllers (control change
messages, such as modulation, volume, pan, and sustain) on and off individually:
0—15
Controller numbers 0 to 15 are chased. These include the following
controllers: modulation wheel, breath, foot, volume, pan, portamento time, balance,
and expression, plus the MSB (most significant byte) for data entry and bank selection.
64—71
“Switch controllers 64 to 71 are chased. These include: sustain, sostenuto, hold 2, soft
pedal, and portamento.
All other
All other controller numbers are chased.
Aftertouch
(Channel) Aftertouch data is chased.
Polyphonic Aftertouch
Polyphonic Aftertouch data, generated by pressure sensors under the individual keys of
the keyboard controller, is chased.
System Exclusive
The most recent SysEx message(s) in the Regions (before the current playback start
point) are transmitted. If a Region contains pre-recorded SysEx fader data, the fader will
be set to its correct state at the playback start point.
Note: Chase events cannot always fully restore the correct state of SysEx data at the
playback start point. To do so would involve not just searching for, but also analyzing
all SysEx messages for the entire song, both before and after the playback start point.
Given the non-standardized data structure of SysEx messages, this is completely
impossible.
If even a couple of sound parameters have been recorded, each with separate SysEx
faders of differing settings before the playback start point, there will be deviations in
the sound. To circumvent this issue, try recording controller data for remote-control of
the SysEx faders during playback. As chase events searches all controller numbers
separately, any sound parameter SysEx settings (that have been substituted with
controllers) will be correct at the playback start point. Another advantage to this
method is that controller events can be edited graphically in the Hyper Editor, or by
using Hyper Draw.
Text Meta Events
Chases lyrics imported from MIDI files.
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