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