Ключевые слова: art, artist, black, caucasian, chord, classic, classical, classical music, concert, finger, fingers, grand, hand, hands, harmony, human, instrument, jazz, key, keyboard, keys, lesson, man, melody, music, musical, musician, note, perform, performance, performer, performing, person, pianist, piano, piano keyboard, piano keys, play, player, playing, practicing, professional, sound, talent, white,