import book_base as BookBase
from book_snippets import *
import lilylib as ly
+global _;_=ly._
+
+progress = ly.progress
+warning = ly.warning
+error = ly.error
# Recognize special sequences in the input.
#
OUTPUT: r'''{%%
\parindent 0pt
+\noindent
\ifx\preLilyPondExample \undefined
\else
\expandafter\preLilyPondExample