X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=Documentation%2Fuser%2Ftutorial.itely;h=b80d9a8c330975963e62b813888b9734f3b4a577;hb=3eb1e37e2e0b3966142cd04b85e30ab882308612;hp=86836d02abf35af9255f43adb243103fd551939b;hpb=c521f5d108e214c1598410e033bf3944e674924c;p=lilypond.git

diff --git a/Documentation/user/tutorial.itely b/Documentation/user/tutorial.itely
index 86836d02ab..b80d9a8c33 100644
--- a/Documentation/user/tutorial.itely
+++ b/Documentation/user/tutorial.itely
@@ -346,7 +346,7 @@ Music Glossary: @rglos{beam}, @rglos{duration},
 @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.
 
@@ -503,7 +503,7 @@ Notes are lower case: @w{@code{@{ c d e @}}} is valid input;
 
 @item
 @strong{Whitespace insensitive}:
-it does not matter how many spaces (or new lines) you add.
+it does not matter how many spaces (or tabs or new lines) you add.
 @w{@code{@{ c d e @}}} means the same thing as
 @w{@code{@{ c @tie{}} @tie{} @tie{} d e @}} and:
 
@@ -522,6 +522,13 @@ thumb is to indent code blocks with either a tab or two spaces:
 @}
 @end example
 
+However, whitespace @emph{is} required to separate many syntactical
+elements from others.  In other words, whitespace can always be
+@emph{added}, but it cannot be @emph{eliminated}.  As missing
+whitespace can give rise to strange errors it is advisable to
+always insert whitespace before and after every syntactic element,
+for example, before and after every curly brace.
+
 @item
 @strong{Expressions}:
 every piece of LilyPond input needs to have @strong{@{ curly
@@ -1233,9 +1240,11 @@ the input, not relative to the @code{c''} in the initial
 @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'' {