One thing about my presentation in Belgium that I've separated off, mainly due to it being only of interest to nerds, was that I did it entirely paperlessly. Unless, of course, you include the sizable copse that was felled in the process of writing the thesis that the paper was based on.
I have little knowledge of elementary school music program experience other than my own, but I can speak with relative confidence that until recently computers were not involved. In fact it was only through divine providence that were ever blessed with so much as instruments. (These would inevitably be three-octave Casio keyboards with only a 50% operation rate)