Adding the current date to the tagline

There are a couple ways to get the current date in your score - using Scheme and a header that suits you (as you may find in the “Adding the current date to a score” example), or placing the same Scheme code in a \markup block.

One more option is to place the date in the tagline. This places the date at the bottom of the last page and appears like this -

Engraved on April 26, 2009 with Lilypond 2.12.2 (http://lilypond.org)

The format of the date can be changed according to these parameters:

%a - is replaced by the locale's abbreviated weekday name.
%A - is replaced by the locale's full weekday name.
%b - is replaced by the locale's abbreviated month name.
%B - is replaced by the locale's full month name.
%c - is replaced by the locale's appropriate date and time representation.
%d - is replaced by the day of the month as a decimal number [01,31].
%I - is replaced by the hour (12-hour clock) as a decimal number [01,12].
%j - is replaced by the day of the year as a decimal number [001,366].
%m - is replaced by the month as a decimal number [01,12].
%M - is replaced by the minute as a decimal number [00,59].
%p - is replaced by the locale's equivalent of either a.m. or p.m.
%U - is replaced by the week number of the year (Sunday as the first day of the week) as a decimal number [00,53].
%w - is replaced by the weekday as a decimal number [0,6], with 0 representing Sunday.
%W - is replaced by the week number of the year (Monday as the first day of the week) as a decimal number [00,53]. All days in a new year preceding the first Monday are considered to be in week 0.
%x - is replaced by the locale's appropriate date representation.
%X - is replaced by the locale's appropriate time representation.
%y - is replaced by the year without century as a decimal number [00,99].
%Y - is replaced by the year with century as a decimal number.
%Z - is replaced by the timezone name or abbreviation, or by no bytes if no timezone information exists.

\version "2.24.0"

%% http://lsr.di.unimi.it/LSR/Item?id=563

\header {
  title = "Title"
  composer = "Composer"
  arranger = "Arranger"
  tagline = \markup {
    Engraved on
    #(strftime "%x at %X" (localtime (current-time)))
    with
    \with-url "http://lilypond.org/web/" {
      LilyPond #(lilypond-version) (http://lilypond.org/)
    }
  }
}

\relative c' {
  c4 d e f
}