Ключевые слова: abstract, audio, backdrop, broadcasting, circular, communication, concentric, cyberspace, dark, dark background, design element, digital art, dynamic, effect, energy, expanding, frequency, futuristic, gradient, graphic, illustration, intensity, modern, motion, music, oscillation, pattern, physics, power, propagation, pulse, radar, red, resonance, ripple, science, signal, sonar, sonic, sound design, sound waves, technology, transmission, vibration, visualization, wallpaper, wave,