))
(gap . 0.5)
(left-bound-info . ,ly:line-spanner::calc-left-bound-info)
+ (normalized-endpoints . ,ly:spanner::calc-normalized-endpoints)
(right-bound-info . ,ly:line-spanner::calc-right-bound-info)
(stencil . ,ly:line-spanner::print)
(style . line)