+Installed Files:
+@file{../ly/titling-init.ly}.
+
+
+@node Creating footnotes
+@subsection Creating footnotes
+
+There are two types of footnotes that can be created; automatic
+footnotes and manual footnotes.
+
+@menu
+* Footnotes overview::
+* Automatic footnotes::
+* Manual footnotes::
+@end menu
+
+@node Footnotes overview
+@unnumberedsubsubsec Footnotes overview
+
+Automatic footnotes create incrementing numerical indicators and manual
+footnotes allow a custom indicator to be created instead. Footnotes are
+normally applied like @code{\tweak} and consequently can be placed
+directly on grobs (graphical objects) created by most music elements and
+post-events. In cases where this does not work (like with bar lines and
+meter changes, where the grobs are produced as a consequence of property
+changes), footnotes can also be specified as a standalone music event
+affecting all grobs of a given type at a particular time step.
+
+The full form of a footnote command is
+
+@example
+\footnote @var{mark} @var{offset} @var{grob-name} @var{footnote}
+@var{music}
+@end example
+
+The elements are as follows:
+
+@table @var
+@item mark
+is a markup or string specifying the footnote mark which is used for
+both marking the reference point as well as the footnote itself at the
+bottom of the page. It can be omitted (or equivalently replaced with
+@code{\default}) in which case a number in sequence will be generated.
+@item offset
+is a number pair such as @samp{#(2 . 1)} specifying the X and Y offset
+from the reference point where the mark will be placed.
+@item grob-name
+specifies a type of grob to mark (like @samp{#'Flag}). If it is given,
+the respective grob will be used as a reference point even in case that
+its @q{cause} is not the referenced @var{music} itself but a grob
+created from it. It can be omitted (or replaced with @code{\default}),
+and then only a directly created grob will be annotated.
+@item footnote
+This markup or string specifies the footnote text to use at the bottom
+of the page.
+@item music
+This is the item, a music event or chord constituent or post-event, that
+is being annotated. While it cannot be omitted, it @emph{can} be
+replaced by @code{\default} in which case the footnote is not attached
+to a music expression in particular, but rather to a moment of time. It
+is mandatory in this case to use the @var{grob-name} argument for
+selecting an affected grob type, like @samp{#'TimeSignature}.
+@end table
+
+Like with @code{\tweak}, if your @code{\footnote} is applied to a
+post-event or articulation, it will itself have to be preceded with
+@code{-} to make the parser attach the result to the preceding note or
+rest.
+
+@node Automatic footnotes
+@unnumberedsubsubsec Automatic footnotes
+
+Automatic footnotes take four arguments: the @samp{(x . y)} position of
+the indicator, the optional @var{grob-name} specifying the layout object
+to be annotated, the @var{footnote} markup itself that will appear at
+the bottom of the page, and of course the @var{music} to attach the
+footnote to.
+
+@lilypond[verbatim,quote,ragged-right,papersize=a8]
+\book {
+ \header { tagline = ##f }
+ \relative c' {
+ \footnote #'(0.5 . -2)
+ \markup { The first note }
+ a'4 b8
+ \footnote #'(0.5 . 1) #'Flag
+ \markup { The third note }
+ e\noBeam c4 d4
+ }
+}
+@end lilypond
+
+Chorded notes pose no particular difficulty:
+
+@lilypond[verbatim,quote,ragged-right,papersize=a8]
+\book {
+ \header { tagline = ##f }
+ \relative c' {
+ <
+ \footnote #'(1 . -1.25) "Here is a C" c
+ \footnote #'(2 . -0.25) \markup { \italic "An E-flat" } es
+ \footnote #'(2 . 3) \markup { \bold "This is a G" } g
+ >1
+ }
+}
+@end lilypond
+
+@warning {When footnotes have the same vertical position, the footnotes
+are printed in order of descendancy; the higher the footnote, the
+higher up in the list.}
+
+Here are some more examples of footnoted grobs, also showing the
+relative position of the footnotes to the tagline and copyright.
+
+@lilypond[verbatim,quote,ragged-right,papersize=a8]
+\book {
+ \header { copyright = \markup { "Copyright 1970" } }
+ \relative c' {
+ a'4-\footnote #'(-3 . 0) \markup { \bold Forte } \f
+ -\footnote #'(0 . 1.5) \markup { A slur } (
+ b8)-\footnote #'(0 . -2) \markup { Beam } [ e]
+ \footnote #'(1 . -1) #'Stem
+ \markup { \teeny { This is a stem } }
+ c4
+ \footnote #'(0 . 0.5) #'AccidentalCautionary
+ \markup \italic { A cautionary accidental }
+ \footnote #'(1 . 1) "The note itself"
+ dis?4-\footnote #'(0.5 . -0.5) \markup \italic { Slow Down }
+ _"rit."
+ }
+}
+@end lilypond
+
+For top-level @code{\markup}, the @code{\auto-footnote} command is
+required:
+
+@lilypond[verbatim,quote,ragged-right,papersize=a8]
+\book {
+ \header { tagline = ##f }
+ \markup { \auto-footnote "A simple tune" \italic "By me" }
+ \relative c' {
+ a'4 b8 e c4 d
+ }
+}
+@end lilypond
+
+
+@node Manual footnotes
+@unnumberedsubsubsec Manual footnotes
+
+@cindex footnotes, manual
+
+Manually marked footnotes take an additional first markup argument
+@var{mark} for making the reference mark. In contrast to automatically
+generated footnote marks, they will not appear before the @var{footnote}
+markup at the bottom of the page: establishing the visual connection is
+left to the user. LilyPond will only make sure that the corresponding
+markup appears on the bottom of the same page.
+
+Other than that, the use is identical to that of automatically numbered
+footnotes.
+
+@lilypond[verbatim,quote,ragged-right,papersize=a8]
+\book {
+ \header { tagline = ##f }
+ \relative c' {
+ \footnote
+ "1" #'(0.5 . -2)
+ \markup { \italic "1. The first note" }
+ a'4
+ b8
+ \footnote
+ \markup { \bold "2" } #'(0.5 . 1)
+ "2. The second note"
+ e
+ c4
+ d-\footnote "3" #'(0.5 . -1) "3. Piano" \p
+ }
+}
+@end lilypond
+
+To annotate chorded notes with manual footnotes:
+
+@lilypond[verbatim,quote,ragged-right,papersize=a8]
+\book {
+ \header { tagline = ##f }
+ \relative c' {
+ <
+ \footnote "1" #'(1 . -1.25) "1. C" c
+ \footnote
+ \markup { \bold "b" } #'(2 . -0.25) "b. E-flat" es
+ \footnote "3" #'(2 . 3) \markup { \italic "iii. G" } g
+ >1
+ }
+}
+@end lilypond
+
+@warning {When footnotes have the same vertical position, the footnotes
+are printed in order of descendancy; the higher the footnote, the
+higher up in the list.}
+
+Here are some examples of manually footnoted grobs, also showing
+the relative position of the footnotes to the tagline and copyright
+
+@lilypond[verbatim,quote,ragged-right,papersize=a8]
+\book {
+ \header { tagline = ##f }
+ \relative c' {
+ a'4-\footnote
+ \markup { \teeny 1 } #'(-3 . 0)
+ \markup { 1. \bold Forte } \f
+ -\footnote
+ \markup { \teeny b } #'(0 . 1.5)
+ \markup { b. A slur } (
+ b8)-\footnote
+ \markup { \teeny 3 } #'(0 . -2)
+ \markup { 3. Beam } [
+ e]
+ \footnote
+ \markup { 4 } #'(1 . -1) #'Stem
+ \markup { \bold 4. { This is a stem } }
+ c4
+ \footnote
+ \markup \concat \teeny { "sharp (v)" }
+ #'(0 . 0.5) #'AccidentalCautionary
+ \markup \italic { v. A cautionary accidental }
+ dis?4-\footnote
+ \markup \concat \teeny { "a" } #'(0.5 . -0.5)
+ \markup \italic { a. Slow Down } _"rit."
+ \footnote
+ \markup { \teeny \musicglyph #"rests.4" }
+ #'(1.5 . -0.25)
+ \markup { \null } \breathe
+ }
+}
+@end lilypond
+
+To manually footnote a top-level @code{\markup}:
+
+@lilypond[verbatim,quote,ragged-right,papersize=a8]
+\book {
+ \header { tagline = ##f }
+ \markup { "A simple tune" \footnote "*" \italic "* By me" }
+ \relative c' {
+ a'4 b8 e c4 d4
+ }
+}
+@end lilypond
+
+@seealso
+Learning Manual:
+@rlearning{Objects and interfaces}.
+
+Notation Reference:
+@ref{Balloon help},
+@ref{Page layout},
+@ref{Text marks},
+@ref{Text scripts},
+@ref{Titles and headers}.
+
+Internals Reference:
+@rinternals{FootnoteEvent},
+@rinternals{FootnoteItem},
+@rinternals{FootnoteSpanner},
+@rinternals{Footnote_engraver}.
+
+@knownissues
+Multiple footnotes for the same page can only be stacked, one on top of
+the other, and cannot be printed on the same line. Footnotes cannot be
+attached to @code{MultiMeasureRests} and may collide with @code{Staff},
+@code{\markup} objects and other @code{footnote} annotations. When
+using any manual @code{footnote} command a @code{\paper} block
+containing @code{footnote-auto-number = ##f} is required.
+