When I record in the midi track of ableton, I have a usb for the midi connected to laptop and synth and also a audio cable for the audio

After I recorded it and saved the file, when I replayed it by unplugging the R3,"none"
How do I record into ableton with the same sounds that would occur when I had the R3 plugged in? Is it possible through midi, just because I have bad microphone.
Thank you
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