Toward the Event Horizon represents my conception of what might transpire as sound waves approach the event horizon of a black hole, where time slows down and a sound’s very existence becomes stretched beyond recognition. In this work, spectral elements of sounds are temporally and registrally manipulated, disintegrated and reconstituted. The resulting sound world attempts to create a slow and massive wrenching apart of sound. While arguably there is no sound in space, NASA scientists have noted that the black hole at the center of the Perseus galaxy releases pressure waves that cause subsonic ripples in the cluster’s hot gas. While nearing the completion of this movement, NASA released an audio sonification of these black hole sounds. NASA’s sonification is included in the final moments of this composition.