Ключевые слова: adjustable, art, artistic, background, blue, class, compose, composition, concert, conductor, dark, education, equipment, gradient, harmony, hobby, holder, instrumental, learn, leisure, lesson, melody, metal, music, musical, musician, neon, object, orchestral, pedestal, perform, performance, play, professional, rack, school, sheet, sheets, sonata, sound, stage, stand, study, talent, tripod,