You can record to more than one audio track at a time, allowing you to record several instruments at once—placing each instrument on a separate track, for example.
Set the instrument or microphone input source for each track you want to record to.
Click the Record Enable button
in the track header of each track you want to record to.
Move the playhead to the point in the ruler where you want to start recording.
Logic Pro includes a metronome, which plays a steady beat to help you play in time while recording. You can turn this on or off using the Metronome button
in the control bar.
Click the Count-in button
in the control bar to have the metronome play a predefined count-in before recording starts.
Note: For the initial setup, choose Record > Count-in, then choose a measure.
Click the Record button
in the control bar (or press R) to start recording.
Start singing or play your instrument.
A new audio region appears on each of the record-enabled tracks.

Click the Stop button
in the control bar (or press the Space bar) to stop recording.