- "Return the value of @var{sym} in output definition @var{def}"
- " (e.g., @code{\\paper}). If no value is found, return"
- " @var{val} or @code{'()} if @var{val} is undefined.")
+ "Return the value of @var{sym} in context definition @var{def}"
+ " (e.g., @code{\\Voice}). If no value is found, return"
+ " @var{val} or @code{'()} if @var{val} is undefined."
+ " @var{sym} can be any of @samp{default-child}, @samp{consists},"
+ " @samp{description}, @samp{aliases}, @samp{accepts},"
+ " @samp{property-ops}, @samp{context-name}, @samp{group-type}.")