+ (HorizontalBracketText
+ . (
+ (direction . ,ly:horizontal-bracket-text::calc-direction)
+ (font-size . -1)
+ (padding . 0.5)
+ (parent-alignment-X . ,CENTER)
+ (self-alignment-X . ,CENTER)
+ (side-axis . ,Y)
+ (stencil . ,ly:horizontal-bracket-text::print)
+ (X-offset . ,ly:self-alignment-interface::aligned-on-x-parent)
+ (Y-offset . ,side-position-interface::y-aligned-side)
+ (meta . ((class . Spanner)
+ (interfaces . (font-interface
+ horizontal-bracket-text-interface
+ outside-staff-interface
+ self-alignment-interface
+ side-position-interface
+ text-interface))))))