4 texidoc = "overriding the molecule callback can also be used to draw a
5 box around arbitrary grobs.
7 TODO: circled molecules.
13 \score { \notes \relative c'' {
15 \property Voice.TextScript \override #'molecule-callback =
16 #(make-molecule-boxer 0.1 0.3 0.2 Text_item::brew_molecule)
20 \property Voice.Stem \override #'molecule-callback =
21 #(make-molecule-boxer 0.05 0.25 0.25 Stem::brew_molecule)
23 \property Score.RehearsalMark \override #'molecule-callback =
24 #(make-molecule-boxer 0.15 0.3 0.3 Text_item::brew_molecule)
27 \property Voice.Stem \revert #'molecule-callback