Ключевые слова: abstract, active, audio, black, concept, conceptual, cone, contemporary, dusty, electric, electronic, equipment, gray, instrument, knob, light, loud, loudness, modern, monitor, music, musical, noise, object, part of, plugged, professional, simple, sound, speaker, stand, still life, structure, studio, technology, tone, turn on, tweeter, volume, wall, woofer,