1. Plug the student’s instrument through the first channel of your audio interface.
2. Plug your own instrument through the second channel of the audio interface.
3. Run the sound/tones through Garageband, and out put it through an iPod speaker set or similar. Yousician only recognizes Channel 1 of the interface. This means you can play along with your student, so you are both rocking out, but Yousician will ONLY recognize the student’s playing, and you are not hindering their score.