"That's me playing a solo by flicking the toggle switch band and forth," says Rage Against the Machine's innovative guitarist, Tom Morello.
"The story behind that sound starts with me going over to Ibanez one day. They were making a guitar for a guy in another band, and it had a special feature on it that they wanted me to try out. So I tried it, and it didn't really seem to do much that was anything different from a normal guitar.
"But I noticed that when you set the toggle between the two pickup settings, there was a really peculiar, high-pitched noise, and you could manipulate the tone of it dramatically when you turned the tone knob. I asked them what the noise was, and they said it was just incidental, that the guitar had an internal pickup and it was picking up this weird noise that they were trying to get rid of.
"I said, 'Oh no, no, come here with that one.' [laughs] I gave them an idea of what I thought was possible with that noise, and they were kind enough to custom build a guitar for me with that feature in it."