+It is not necessary for the first note of the melody to start on
+the note which specifies the starting pitch. In the previous
+example, the first note -- the @code{d} -- is the closest D to
+middle C.
+
+By adding (or removing) quotes @code{'} or commas @code{,} from
+the @code{\relative c' @{} command, we can change the starting
+octave:
+
+@lilypond[verbatim,quote,ragged-right]
+\relative c'' { % one octave above middle C
+ e c a c
+}
+@end lilypond
+
+Relative mode can be confusing initially, but is the easiest way
+to enter most melodies. Let us see how this relative calculation
+works in practice. Starting from a B, which is on the middle line
+in a treble clef, you can reach a C, D and E within 3 staff spaces
+going up, and an A, G and F within 3 staff spaces going down. So
+if the note following a B is a C, D or E it will be assumed to be
+above the B, and an A, G or F will be assumed to be below.
+
+@lilypond[verbatim,quote,ragged-right]
+\relative c'' {
+ b c % c is 1 staff space up, so is the c above
+ b d % d is 2 up or 5 down, so is the d above
+ b e % e is 3 up or 4 down, so is the e above
+ b a % a is 6 up or 1 down, so is the a below
+ b g % g is 5 up or 2 down, so is the g below
+ b f % f is 4 up or 3 down, so is the f below
+}
+@end lilypond
+
+Exactly the same happens even when any of these notes are
+sharpened or flattened. @notation{Accidentals} are
+@strong{totally ignored} in the calculation of relative position.
+Precisely the same staff space counting is done from a note at any
+other position on the staff.