The way the project is developing now I see the need to diverge the two paths. On the one hand I need to simplify the piece intended for galleries while the performance piece needs to be opened up and made more complex. After discussing the project with my brother last night I got affirmation for some of the ideas I have had floating around in regard to simplification. The gallery piece should only train one cognitive aspect, like “push” and have some sort of gravity force resetting it to neutral when you “let go". The control should be over volume rather than pitch, but the sound will be a more complex harmony that will be brought closer (lessening reverb) and louder as the visitor mentally “pushes” the volume. Possibly it will also be pushed from a dissonance to a harmonic major. Rather than a screen or a projector I can use lights to give visual cues and also add more atmosphere. I have toyed with the idea of servo controlled lights for a while, but my brother was for a more simple approach of just adjusting the luminance of the room to give that spiritual and powerful effect I have been looking for.