In Ableton live lite 8, I am recording on track 4 with my MPK midi keyboard controller via usb on my mac. How do I adjust track fours monitor level without affecting the recording level of track 4. My keyboard is blasting thru my headphones and I cannot adjust its monitor volume without affecting the recording level. I have read the live Manuals on this and I am confused with its wording. Your input and experience is appreciated.