"Before the advent of amplified music, this (meeting the needs of musicians and audiences) happened naturally. Musicians playing acoustically could hear the natural uncolored sounds that they and their fellow musicians were producing and because each sound came directly from its source it was mixed in a natural way so that the musicians and their audience enjoyed an automatic connection between the visual and the aural. The source of a particular instrumental sound could be instantly located and fully appreciated." (https://youtu.be/neIOP1uhjpE?t=23)
The abovementioned video makes reference to instruments generally. But my request for an L1SA (Steerable Array) is to have a speaker that will accurately guide the attention of each person in the largest possible audience to the source of the most amazing instrument of them all, the human voice.