Ключевые слова: avocation, blurry, childhood, children, college student, day, daylight, education, exercising, female, finger, girl, hands, hobby, indoor, instrument, kid, learn, leisure, lesson, lifestyle, melody, music, musical instrument, musician, one person, performance, pianist, piano, piano keys, playing, practice, practicing, sitting, skill, sunlight, symphonic, talented, training, woman, young, youth,