-\override TextSpanner
- #'(bound-details left stencil-align-dir-y) = #-2
-\override TextSpanner
- #'(bound-details right stencil-align-dir-y) = #UP
-
-\override TextSpanner
- #'(bound-details left text) = #"ggg"
-\override TextSpanner
- #'(bound-details right text) = #"hhh"
+\override TextSpanner.bound-details.left.stencil-align-dir-y = #-2
+\override TextSpanner.bound-details.right.stencil-align-dir-y = #UP
+
+\override TextSpanner.bound-details.left.text = #"ggg"
+\override TextSpanner.bound-details.right.text = #"hhh"