There's no doubt in my (military) mind that demonstration and repetition has a definite place in instruction. Last week, though the playing was only for 15 minutes or so, was great in that it was a reinforcing effort on something that has been spoken of for at least a year and a half, but only now getting concerted practice. It's like any class, once we leave the class environment we depart to our own little world of crisis and problems, etc, and something said in class can get swallowed up by requirements of life. Some more of that kind of instruction, as they say, "can't hoit!"