3 As a last resort, the placement of grobs can be adjusted manually, by
4 setting the @code{extra-offset} of a grob.
10 \outputproperty #(make-type-checker 'note-head-interface)
11 #'extra-offset = #'(2 . 3)
15 \outputproperty #(make-type-checker 'mark-interface)
16 #'extra-offset = #'(-1 . 4)