Apple Logic Express 7 - Manual (Page 166)

166 Chapter 5 The Environment
Multi-instruments have 15 name banks—each of which will hold 128 preset names. If
the multi-instrument’s program parameter is checked, selecting names in the name
bank will send MIDI program change messages to the corresponding port and channel.
You will generally use multi-instruments to address multi-timbral synths or samplers in
your studio. A multi-timbral synth is one that can receive on several MIDI channels at
once—playing back a different sound on each channel. As most modern MIDI devices
are multi-timbral, the multi instrument will probably be the most commonly used
instrument Object in your Environment.
To create a new multi-instrument, choose New > Multi Instrument.
A multi-instrument is intended for use with multi-channel MIDI sound devices. It
combines 16 separate sub-instruments (one for each MIDI channel) with 15 name
banks, and a number of common bank select options.
A multi-instrument consists of 16 sub-channels, each of which has a complete set of
instrument parameters. The name, MIDI channel and output of each sub-channel is
determined by the multi-instrument. All sub-channels share the 15 banks of program
names, and use the same format for their bank select message.
Multi-Instrument Parameter Box
Once you have created a multi-instrument, you will see the multi-instrument Parameter
box.
You should already be familiar with the meaning and operation of the individual
parameters (as they’re identical to those of the standard instrument Object). The
settings made here apply to all sub-channels and should be left at their neutral, default
values, with the exception of the output port setting. Set the output port in the line
below the “Cha” parameter line (Port parameter). For more information on this subject,
please read the Direct Output Assignment section (see “Direct Output Assignment” on
page 159). Direct output assignment can also be replaced by manual cabling to other
Environment Objects—so keep it in mind.