Ключевые слова: abstract, amplifier, audio, background, bar, black, blue, color, design, digital, disco, display, electronic, equalizer, frequency, graph, graphic, graphic equalizer, illustration, level, line, meter, mixer, music, music equalizer, musical, pattern, play, player, pulse, radio, record, recorder, song, sound, sound bars, sound waves, soundtrack, spectrum, stereo, studio, technology, track, voice, volume, wave, waveform,