This is just plain strange! Apparently this video was lost for some time and was found in the attic of the American Board of Education.
I don’t know what to say about this video.
A bit of a warning for younger viewers, it is a sex education video so if you are under 15 or sensitive about this kind of thing perhaps give this one a miss and play some Mario Flash games instead.
Damn this is cool, apparently they are 110dB loud!
The music that you hear is coming from the sparks that these two identical high power solid state Tesla coils are generating. There are no speakers involved. The Tesla coils stand 7 feet tall and are each capable of putting out over 12 foot of spark. They are spaced about 18 feet apart. The coils are controlled over a fiber optic link by a single laptop computer. Each coil is assigned to a midi channel which it responds to by playing notes that are programmed into the computer software.