http://youtu.be/QxEaKyyQzn4?t=59s Just click it, incase it does not work as intended it's at 0:59~. Looks like he's turning down the volume then doing an artificial harmonic then just pulling the whammy bar straight up, but i cant get the sound, how to do it? please help!
It's a squeal. You dive the bar, hit a harmonic and then pull the bar up.