10.6

Table Of Contents
935Logic Pro User Guide
Subchannels in the Environment in Logic Pro
Each of the 16 standard instruments in a multi-instrument provides a separate MIDI
channel—mirroring the 16 MIDI channels—and is therefore called a subchannel. The multi-
instrument’s interface includes a numbered square (button) for each subchannel. Clicking
a numbered square selects the corresponding subchannel, and displays its parameters in
the Object inspector.
Each subchannel has a complete set of instrument parameters, identical to those for
standard instruments. For details, see Standard instrument parameters in the Logic Pro
Environment.
The only parameter you can’t change is the MIDI channel. If you attempt to change the
MIDI channel, you’re asked to select another subchannel, or select the multi-instrument
itself to change the common driver destination. You can, however, change the channel in
the Track inspector to any subchannel of the multi-instrument, and the track is assigned to
the selected subchannel. This allows you to redirect the (regions on the) track to another
subchannel, making it easy to play multiple parts with a particular channel/sound.
Note: If you change the Output port parameter of any subchannel, the entire multi-
instrument and all other subchannels are affected.
As with any other Environment object, you can prevent subchannels from appearing in the
Reassign Track shortcut menu in the Tracks area by deselecting the Assignable checkbox
in the Object inspector. The button for the subchannel appears with a diagonal line through
it when deactivated.
In the above image, subchannel 1 is selected, subchannels 1 to 8 are activated, and
subchannels 9 to 16 have been removed from the Reassign Track shortcut menu.
Connect the output of an object directly to the input of a subchannel
In Logic Pro, option-click the source objects output triangle, then choose the
subchannel in the Reassign Track shortcut menu. (See Cable Environment objects in in
Logic Pro.)
You can’t drag a cable to a subchannel. Any dragged cables can only be connected to the
entire multi-instrument object, not one of its subchannels.