Guida al funzionamento interno:
@rinternals{Horizontal_bracket_engraver},
@rinternals{HorizontalBracket},
@rinternals{horizontal-bracket-interface},
Guida al funzionamento interno:
@rinternals{Horizontal_bracket_engraver},
@rinternals{HorizontalBracket},
@rinternals{horizontal-bracket-interface},