-For pedagogical purposes, you may want to make one staff line thicker
-(e.g. the middle line, to emphasize the line of the G clef). This can
-be achieved by adding extra lines very close to the line you want to
-make thicker, using the @code{'line-positions} property of the
+For pedagogical purposes, a staff line can be thickened (e.g., the
+middle line, or to emphasize the line of the G clef). This can be
+achieved by adding extra lines very close to the line that should be
+emphasized, using the @code{line-positions} property of the