#space.surface_area  one of the areas between or below or above the lines of a musical staff; "the spaces are the notes F-A-C-E"
  supertype:  #surface_area__surfacearea__area__expanse  the extent of a 2-dimensional surface enclosed within a boundary; "the area of a rectangle"; "it was about 500 square feet in area"
  part of:  #musical_notation__musicalnotation  a notation used by musicians
     part of:  #musical_score__musicalscore__score  a written form of a musical composition; parts for different instruments appear on separate staves on large pages; "he studied the score of the sonata"
  part of:  #stave__staff  (music) the system of five horizontal lines on which the musical notes are written

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