janzen@angora.DEC (Tom J. LMO4-2/B5 279-5421) (11/09/85)
The theremin used the capacitance of the gap between the antenna and your hand (connected to earth through your personal resistance). There is no more accurate method. How do you measure accuracy in this? The hands were not perpendicular to one another necessarily; they just worked around separate antennae. Some theremins could change tone color too, usually with a switch. The old style of theremin playing had a very wide vibrato that made me sick in an old jerry lewis movei, "the deliquent" I think. Tom