It’s probably the one song that turned out most differently than I had envisioned it- I thought it would be harder rock. Of the three guitars, my gold top Les Paul rhythm part is the most distorted. I played the two solos; I had originally imagined that the outro would be a guitar dialogue between me and Spinozza (certainly not a “duel,” as that is one duel I would have roundly lost), but as I started to record it the phrasing turned out to be better for one guitar. I “produced’ the mix as both David and Al weren’t available, and by that time they trusted me to know what I was doing. In those days, that was the beginning of my lifelong love of mixing. I have musician friends who hate it, as all the final decisions have to be made, but I liken it to when an artist has all of the colors of their paintbox at their fingertips.
BTW when the execs at London heard it they decided they wanted it sequenced first on side one, but I always thought of it as a jam tune and so changed it to where it is now.