MusicParser\Structure\Song
   '- MusicParser\Structure\Section
      '- MusicParser\Structure\Column
         '- MusicParser\Structure\TextBlock
            '- MusicParser\Structure\Text (Př)
            '- MusicParser\Structure\Chord (C)
            '- MusicParser\Structure\Text (ijely k nám z dálky intelektu)
            '- MusicParser\Structure\Chord (F)
            '- MusicParser\Structure\Text (álky,)
            '- MusicParser\Structure\EOL
            '- MusicParser\Structure\Text (já měl dvě, P)
            '- MusicParser\Structure\Chord (C)
            '- MusicParser\Structure\Text (epa tři, ale to sem nepatří ...)