Before you can mixdown the song, any MIDI tracks using an External MIDI Instrument have to be recorded to one or more audio tracks. To do this you should:
- Connect you synthesizer's output to your Audio In Device. If the synth is on your soundcard it may be possible set up the soundcard to record the synth without any external wires.
- Switch the MIDI track(s) to playback mode. Mute all other tracks.
- Add a new audio track and switch it to record mode.
- Start the transport and stop it when the whole MIDI track has been played.
You can now use the audio tracks instead of the MIDI tracks. To make the audio tracks sound just as loud as the original tracks did adjust the Volume fader while switching between the tracks using the Solo or Mute buttons.