These are really cool musical instruments.
Sweet Home Alabama
House of the Rising Sun
In the Hall of the Mountain King
And some other guys:
The Masters of Lightning Play Toccata & Fugue in D Minor with Zeusaphones
It is not often you see Tesla coils making music. He is using over 24kw to do this!
From the description below the first video:
These are two gigantic solid state musical Tesla Coils. A Tesla Coil is
a special type of transformer invented by Nikola Tesla that is able to
generating extremely large voltages using a phenomenon known as
electrical resonance. Each coil in this video is capable of generating a
13 foot spark. This equates to about 500,000 volts of electricity.
primary drive system for the coils consists of high power
semiconductors arranged into an H-Bridge switching configuration.
During a spark event, the coil is pulsed on for a few hundred millionths
of a second. During this short time, thousands of amps circulate
within the primary tank circuit and the energy is coupled into the
secondary resonator through magnetism.
So what appears to be
a continuous burst of sparks is actually a specific number of sparks
generated per second. By modulating the number of sparks that emit from
the coil each second, different tones can be produced by the coils.
These coils were constructed by Eric Goodchild and Steven Caton.
Eric Goodchild is currently an EE student at ASU Polytechnic.
His personal website is: http://www.goodchildengineering.net/
Steven Caton is currently an EE student at UCLA
His personal website is: http://stevencaton.com/