Ключевые слова: accompaniment, accordion, acoustic, art, bayan, blue, chords, classic, colored, concert, design, element, entertainment, equipment, festival, flat, graphic, green, harmonic, harmonica, harmony, instrument, key, keyboard, keypad, melody, music, musical, musician, national, note, object, part, pattern, performance, play, pneumatic, red, seamless, shape, single, sound, tool, traditional, white, yellow,