Ключевые слова: ablare, althorn, bass, black, bombardon, box, circular, diy, ellipse, frequency, gradient, high, hollow out, light, loudspeaker, lumber, magnetic, mediant, midi, music, noisy, paint, performance, sackbut, screw, shake, shock, sound, soundwave, sphere, timber, timbre, tone, vibrate, vision, wood, woofer,