- \override TextSpanner #'style = #'solid
- \override TextSpanner #'font-size = #-5
- \override TextSpanner #'(bound-details left stencil-align-dir-y) = #CENTER
- \override TextSpanner #'(bound-details left text) = \markup { \circle \number #StringNumber }
+ \override TextSpanner.style = #'solid
+ \override TextSpanner.font-size = #-5
+ \override TextSpanner.bound-details.left.stencil-align-dir-y = #CENTER
+ \override TextSpanner.bound-details.left.text = \markup { \circle \number #StringNumber }