Reflexes are reactions onto a certain stimulus. The program was denominated “Reflex” because it responds to sound waves with motion – it has more than twenty different alternatives for visualizing sound. These can be freely composed thus obtaining a much higher number of image variations. There are two groups of surfaces. The first group contains indicators basing on audio physics. In this case it is the sound wave or the spectrum, obtained through FFT transformation, which appear graphically.The second group bears the name Macro, in which an imaginary world – seen through a microscope – appears. The tiny creatures revive through sound. Their motion and its pattern correlate to the different features of the sound. If there is no sound, life stops – if there is sound they start to move about or swim jointly between the frameworks of their virtual territory. The program can be used with live music, through the help of an external microphone enabling a visual background of live performances.