On my CUE MIX knob the two extremes are labeled PFL and PGM. I understand what they do, but I was just wondering what those abbreviations stand for?

Pre Fader Listen (or Pre Fader Level) and something else I'm new to DJing so I don't know

___________________
-trance85

PFL= pre fade listen (you hear the signal before the fader- so the fader level does not affect the level of signal)

PGM- Program (as in main program- what is going out of the main output onto the dance floor- )