3 texidoc = "With balloon texts, objects in the output can be marked,
4 with lines and explanatory text added."
13 \once\property Voice.Stem \set #'molecule-callback = #Balloon_interface::brew_molecule
14 \once\property Voice.Stem \set #'original-callback = #Stem::brew_molecule
15 \once\property Voice.Stem \set #'balloon-text = #"I'm a stem"
16 \once\property Voice.Stem \set #'balloon-text-offset = #'(3 . 4)
17 \once\property Voice.Stem \set #'balloon-text-props
18 = #'((font-family . roman))
24 \paper{ raggedright = ##t }