@rglos{dotted note}.
The @notation{duration} of a note is specified by a number after
-the note name. @code{1} for a @notation{whole note}, @code{2} for
+the note name: @code{1} for a @notation{whole note}, @code{2} for
a @notation{half note}, @code{4} for a @notation{quarter note} and
so on. @notation{Beams} are added automatically.
@subheading Simultaneous music expressions: single staff
To determine the number of staves in a piece, LilyPond looks at
-the beginning of the first expression. If is a single note, there
-is one staff; if there is a simultaneous expression, there is more
-than one staff.
+the beginning of the first expression. If there is a single note,
+there is one staff; if there is a simultaneous expression, there
+is more than one staff. The following example shows a complex
+expression, but as it begins with a single note it will be set
+out on a single staff.
@lilypond[verbatim,quote]
\relative c'' {