Ключевые слова: abstract, arrangement, background, bar, beat, chord, classical, clef, compose, composer, composition, concert, document, graphic, group, harmony, jazz, key, measure, melody, music, music book, musical, musician, note, opera, orchestra, page, paper, pattern, pentagram, performance, play, print, rhythm, score, sheet, sing, song, sound, staff, symbol, symphony, tile, tone, treble, tune, vocal, white, written,