\property Score.TextScript \set #'font-style = #'large
<<d a fis>>4_"notation" r
-{ \property Voice.Stem \override #'flag-style = #""
+{ \property Voice.Stem \override #'flag-style = #'()
\grace g16
\property Voice.Stem \revert #'flag-style
}
fis8 e16 fis
-{ \property Voice.Stem \override #'flag-style = #""
+{ \property Voice.Stem \override #'flag-style = #'()
\grace a16
\property Voice.Stem \revert #'flag-style
}