Here is a SpectraStrobe track I have been using lately for sleep when I am tired and hypnagogic imagery generation when I am not as tired. The colliding interference audio waves are really hypnotic I think. The lights are very gentle (no blue) and slow but unpredictable. Just enough to color visions I think.
The frequencies are all around and below 3hz. However, the colliding audio tones creates some faster patterns occasionally.
