4 texidoc ="In polyphonic notation, many voices can share a staff: In
5 this situation, the accidentals and staff are shared, but the stems,
6 slurs, beams, etc. are private to each voice. Hence, engravers should
7 be grouped. The engravers for note head, stems, slurs, etc. go into a
8 group called ``Voice context'', while the engravers for key,
9 accidental, bar, etc. go into a group called ``Staff context''. In the
10 case of polyphony, a single Staff context contains more than one Voice
11 context. Similarly, more Staff contexts can be put into a single Score
16 \include "engraver-example.lyinc"
19 \context Staff << \topVoice \\ \botVoice >>
24 << \new Staff << \topVoice \\ \botVoice >>
25 \new Staff << \pah \\ \hoom >>