Sound leaves marks. Not metaphorically — literally . Every sound event creates a trace: a waveform, a spectrum, a contour over time. These traces are often treated as technical artifacts, useful for editing or analysis and then discarded. In the context of Sono Sol Gold , they are treated differently — as visual objects in their own right. Waveforms as Art: From Sound Trace to Visual Form Seeing Sound A waveform is a visual representation of change over time. Peaks and valley