Electropond is a browser-based visual-physics instrument: a pond of FM plankton that sing through motion, color, collision, and non-keyboard tuning fields.
Click “start audio” once. Drag to disturb currents. Click/tap to make ripples. press 'h' to hide the UIDouble-click empty space to seed an organism; double-click an organism to dissolve it. Louder motion means louder plankton; calm water recedes into near-silence.