+You have seen many practical examples which created new
+@code{Staff} and @code{Voice} contexts in earlier sections, but
+to remind you how these commands are used in practice, here's an
+annotated real-music example:
+
+@lilypond[quote,verbatim,ragged-right]
+\score { % start single compound music expression
+ << % start of simultaneous staves section
+ \time 2/4
+ \new Staff { % create RH staff
+ \key g \minor
+ \clef "treble"
+ \new Voice { % create voice for RH notes
+ \relative c'' { % start of RH notes
+ d4 ees16 c8. |
+ d4 ees16 c8. |
+ } % end of RH notes
+ } % end of RH voice
+ } % end of RH staff
+ \new Staff << % create LH staff; needs two simultaneous voices
+ \key g \minor
+ \clef "bass"
+ \new Voice { % create LH voice one
+ \voiceOne
+ \relative g { % start of LH voice one notes
+ g8 <bes d> ees, <g c> |
+ g8 <bes d> ees, <g c> |
+ } % end of LH voice one notes
+ } % end of first LH voice
+ \new Voice { % create LH voice two
+ \voiceTwo
+ \relative g { % start of LH voice two notes
+ g4 ees |
+ g4 ees |
+ } % end of LH voice two notes
+ } % end of LH voice two
+ >> % end of LH staff
+ >> % end of simultaneous staves section
+} % end of single compound music expression
+@end lilypond
+
+(Note how all the statements which open a block with either a
+curly bracket, @code{@{}, or double angle brackets, @code{<<},
+are indented by two further spaces, and the corresponding
+closing bracket is indented by exactly the same amount. While
+this is not required, following this practice will greatly
+reduce the number of @q{unmatched bracket} errors, and is
+strongly recommended. It enables the structure of the music to
+be seen at a glance, and any unmatched brackets will be obvious.
+Note too how the LH staff is created using double angle brackets
+because it requires two voices for its music, whereas the RH staff
+is created with a single music expression surrounded by curly
+brackets because it requires only one voice.)
+
+@cindex contexts, naming
+@cindex naming contexts
+
+The @code{\new} command may also give a identifying name to the