John Frusciante on the guitar work of the song: "The main part is done with volume-knob swells, a wah, and a chorus pedal, but I used the wah pedal exactly the opposite of how it's normally used. I raise the volume while the wah is in the full treble position, and then close the wah to its full bass position. Then I lower the volume and repeat the move on the next chord. It's unusual for a guitarist to use a wah that way, but it is the way a synthesist would think. The chorus effect is maxed at some points, as is the Holy Grail, which is set to the Spring sound. The solo is processed with the stereo phasing effect from the Analogue Systems Phaser."
Bert - Pueblo, NM