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Channel splitters in the Logic Pro for Mac Environment
A channel splitter routes MIDI events by channel. Every MIDI event received at the channel splitter input is automatically routed to the output that corresponds to its MIDI channel. If no cable is connected to the corresponding output channel strip, the event is rerouted to the SUM output (at the top).

Create a new channel splitter object
In the Logic Pro Environment window, choose New > Channel Splitter.