I go with guest john B, recently we were singing with a PA and I couldn't hear myself on the monitors , I had no idea what sound was coming out which made me incredibly self conscious, I cupped the dreaded ear and heard the right sort of sounds, such was the blend I just couldn't pick my voice out of it, it was there but I needed the reassurance cos with only three voices one is a tad exposed if you hit a bum note and at worse several!