-@lilypond[quote,verbatim,relative=2]
-b1_\markup { \abs-fontsize #20 Sinfonia }
-b1^\markup { \abs-fontsize #8 da }
-b1-\markup { \abs-fontsize #14 camera }
+@lilypond[quote,verbatim]
+\relative b' {
+ b1_\markup { \abs-fontsize #20 Sinfonia }
+ b1^\markup { \abs-fontsize #8 da }
+ b1-\markup { \abs-fontsize #14 camera }
+}
+@end lilypond
+
+If the text includes spaces, then it is best to put it all inside quote
+marks, so that the size of each space is appropriate for the size of the
+other characters.
+
+@lilypond[quote,verbatim]
+\markup \fontsize #6 \bold { Sinfonia da camera }
+\markup \fontsize #6 \bold { "Sinfonia da camera" }