In Setup / Configure Audio System / Input Monitoring Mode, make sure that “Monitor record-enabled tracks through effects” is selected.
In Setup / Configure Audio System / Configure Hardware Driver, check that Buffer Size is 256 or 128.In Setup / Configure Audio System / Configure Hardware Driver, check that Sample Rate is 44100.In Setup / Configure Audio System / Configure Hardware Driver, check that Master Device is correct.In Preferences / Audio Plugins, make sure MIDI Guitar VST is enabled.MOTU Digital Performer MOTU Digital Performer 8 & 9 In the step sequencer select and enable a synth such a DX10. In MIDI Guitar plugin settings set MIDI Output port to 0. In the Mixer add MIDI Guitar plugin to an available channel other than Master. you can of course change it to any instrument. When you create an “instrument track” in Logic Pro, it automatically installs an instrument in a midi instrument slot… That is the instrument that will be activated and played by the midi information recorded on the track. On the second track you created, do not call up Midi Guitar 2 in the channel fader slots. This new “second” track should be an “instrument track” for the “midi information” that will automatically come from the Midi Guitar 2 plugin on the first guitar track you created… These two tracks will work together! Make sure you don’t use any other effects before MIDI Guitar (as MIDI Guitar needs a completely dry input). On the channel fader of this “first” track, activate Midi Guitar 2 in the audio FX slot.
Click Record and then Play to start recording MIDI from MIDI Guitar.Arm recording for “2 MIDI” track to record MIDI from MIDI Guitar.Select “1 Audio” as “Input Type” for “2 MIDI” track to redirect MIDI from MIDI Guitar to your MIDI track.Click “In” button on the “1 Audio track” to verify that MIDI Guitar works with your audio interface.Make sure you have an Audio Track named “1 Audio” and a MIDI track named “2 MIDI”.Click “I-O” button to show In/Out section.Press Tab key to access Arrangement View.