@{c d e @}} is valid input; @code{@{ C D E @}} will produce an
error message.
-@sp 1
+@smallspace
@subheading Entering music and viewing output
a
@end lilypond
-@sp 1
+@smallspace
@subheading Warning: key signatures and pitches
a8(\( ais b c) cis2 b'2 a4 cis,\)
@end lilypond
-@sp 1
+@smallspace
@cindex slurs versus ties
@subheading Warnings: slurs vs. ties