In this situation, the accidentals and staff are shared, but the stems,
slurs, beams, etc., are private to each voice. Hence, engravers should
be grouped. The engravers for note heads, stems, slurs, etc., go into a
-group called `Voice context,' while the engravers for key, accidental,
-bar, etc., go into a group called `Staff context.' In the case of
+group called @q{Voice context,} while the engravers for key, accidental,
+bar, etc., go into a group called @q{Staff context.} In the case of
polyphony, a single Staff context contains more than one Voice context.
Similarly, multiple Staff contexts can be put into a single Score
context. The Score context is the top level notation context.