Ключевые слова: abstract, amplifier, analyzer, audio, background, bar, black, block, blue, club, clubbing, color, concepts, copy space, dance, digital, disco, display, electronics, equalizer, equipment, fluorescent, frequency, gradient, graph, graphic, happy, illustration, light, meter, mixer, mp3, music, musical, party, peak, player, radio, rainbow, recorder, recording, reflection, sound, spectrum, stereo, studio, technology, voice, volume, wave,