This one really is an oz mixtape, (state?) government approved. Recently picked up for $2, it's been charmingly home dubbed to fit as much as possible onto the first side ... each track is introduced, and some of them feature a weird guy counting in the background. I'm sure it fitted into the curriculum somehow. Imagine studying this in the 80s, amazing! For more magic, check out this Mediaeval Midi Mixtape by Lucky Dragons.