Ключевые слова: abstract, art, background, book, chord, classical, clef, compose, composer, composition, concept, concert, focus, grunge, handwritten, instrument, key, macro, melody, music, musical, nobody, notation, note, notebook, notes, octave, old, page, paper, piano, point, retro, row, scale, school, sharp, sharpen, sheet, sign, sonata, song, staff, stained, symbol, symbols, symphony, texture, treble, vintage,