This intermediate project will cover a number of concepts fundamental to analog electronics - frequency, filters, signal and ground relationship, etc. - as well as incorporating build techniques from past installments of the Series. I'll Explain the basic functionality of an LED color organ ("sound-to-light" circuit) - and of course build it! the initial description will follow the circuit's schematic covering the role of each major component involved, which will demystify all of the actual physical connections I solder during construction. And the result of this educational build process - an LED lightshow controlled by Music! this Kit is called" customizable" because you layout the components on the blank PCB according to your preference. An easier drop-and-solder version is now available! see our easy color organ Kit here.