Im trying to use my scarlett 2I2 to record my instrument and a mic plus audio form my computer (record what you hear) the reason why I want to do this is to use it for skype lessons. I want the person on the other side to hear my instrument hear my voice over the mic and hear the audio playback. I tried doing this using stereo mix in windows 10 but I couldn’t get it to work. Do I need to buy a mixer Or special software to make it work? I also want to hear the audio from my computer and my instrument to be send back to me over the headphones via the headphone jack of the scarlett.