Doc: add a note about \relative f to NR

diff --git a/Documentation/notation/pitches.itely b/Documentation/notation/pitches.itely
index d9d2fb2faaca63f9e7e3d9dcce460c1c044945cd..901546a36401997cfa159d8832a9c10df1974152 100644 (file)
--- a/Documentation/notation/pitches.itely
+++ b/Documentation/notation/pitches.itely
@@ -255,6 +255,9 @@ that each interval contains.
 }
 @end lilypond
 
+One consequence of these rules is that the first note inside
+@code{@w{\relative f}} music is interpreted just the same as
+if it was written in absolute pitch mode.
 
 @seealso
 Music Glossary: