Control Multiple Instruments on Different MIDI Channels — Logic Pro Help
Controlling multiple instruments on different MIDI channels in Logic is easy, and it does not require you to ever open the environment! It also allows you to record different controller keyboards on different software instrument or external MIDI tracks. Whether you’re trying to use an external sequencer (like an MPC 2000, or even another computer running Logic) to trigger instruments within Logic, or whether you’re simply trying to play different instruments using different MIDI controllers, read on.