I think what Deadmau5 exemplifies is intuitive understanding to a degree where I think it wouldn't be very hard for him to learn how to design circuitry if he w

I think what Deadmau5 exemplifies is intuitive understanding to a degree where I think it wouldn't be very hard for him to learn how to design circuitry if he wanted to. You don't really need to be an electrical engineer in order to successfully build low frequency electronics. It is one of those fields where you can get a surprising amount of useful work done by roughly knowing what you are doing and accumulating experience. ...as long as you don't connect anything to mains power or irreplacable modular synths :-)