Lyscria refers to the system of enigmatic sounds associated with heightened states of emotion or expression, frequently connected with the performing arts. A dancer, at the height of her act, produces a soft but commanding hum that permeates through the audience. A jazz musician reaches a point where he no longer needs to move his fingers as the Lyscria takes over. A fierce argument produces small explosions of dark noises. An embrace can be experienced as a whisper.