-@code{staff-staff-spacing} property of the @code{VerticalAxisGroup}
-@q{graphical object} (commonly called @q{grob}s within the lilypond
-documentation) -- don't worry about the details right now; this is
-fully explained later. For the curious, have a look at
-@ruser{Overview of modifying properties}. Currently, it is not
-possible to modify the @code{stretchability} sub-property only, we
-thus have to copy the other sub-properties also. Again, for the
-curious, you can find the default values in file
-@file{scm/@/define-grobs@/.scm} by looking up the definition of the
-@code{VerticalAxisGroup} grob. The value for @code{stretchability}
-is taken from the definition of the @code{PianoStaff} context (in
-file @file{ly/@/engraver-init@/.ly}) so that the values are
-identical.
+@code{staff-staff-spacing} property of the
+@code{VerticalAxisGroup} @q{graphical object} (commonly called
+@q{grob}s within the lilypond documentation) -- don't worry about
+the details right now; this is fully explained later. For the
+curious, have a look at @ruser{Overview of modifying properties}.
+In this case, we want to modify the @code{stretchability}
+sub-property only. Again, for the curious, you can find the
+default values for the staff-staff-spacing property
+in file @file{scm/define-grobs.scm} by looking up the definition
+of the @code{VerticalAxisGroup} grob. The value for
+@code{stretchability} is taken from the definition of the
+@code{PianoStaff} context (in file @file{ly/engraver-init.ly})
+so that the values are identical.