I don't know if this really counts as a doodle or not, but since it touches on the subject of stereo, I figured I'd throw it in. This is the instrument layout diagram from Andre Kostelanetz-Wonderland Of Sound (Columbia CS 8457, 1961). You can clearly see that electric guitar goes on the right, and each side gets it's own set of vibes. Timpani are split, two on the left, one on the right. Trumpets and trombones left, oboes, cymbals and harp on the right. Eveything has a place, and everything in it's place.