Voices, noise, beats, shouts—acoustic waves. Those of the sea are the starting material for Billy Roisz’s and Dieter Kovačič’s “picture track” for the composition AQUAMARINE by the group MOPCUT. Images like sounds, as great, wavelike arcs, which wind organically and proliferate, branch out and clump together—and at the same time, refer to the tools and circuits that they’re based on.