Ключевые слова: adult, artist, arts, bow, businessman, caucasian, cellist, cello, classical, closeup, concentration, concert, creativity, dark, equipment, event, expertise, hand, holding, human, instrument, learning, males, man, men, music, musical, musician, occupation, one, performance, performer, performing, person, playing, popular, portrait, practicing, professional, room, skill, space, stage, string, suit, violin, violinist, young,