Originally Posted by russ_777
If the show was set up in quad then it would. At least a couple of ELP's shows on their WBMFTTSTNE tour were played in quad. This can be easily heard by listening to some of the synthesizer parts on Tocatto, Aquatarkus and of course the finale of KE9 3rd Impression on the live album of same name, even though it's only in stereo.
Very few shows back "then" had speakers setup in all parts of the arena. Pink Floyd had speakers around the arena for the 2 of the 3 times I saw them (the first time the venue was way too small) and ELP's Brain Salad Surgery tour concert. That's not saying nobody else did, but just shows I went to pre-1975. Smaller venues, like old movie theaters, had better acoustics than "arenas" and the theaters were designed (acoustically) to have all the audio coming from the stage/front.
And the pantaloon duck, white gooseneck quacked: Webcor, Webcor