lilypond-notation: Changing defaults

 
 5 Changing defaults
 *******************
 
 The purpose of LilyPond’s design is to provide the finest quality output
 by default.  Nevertheless, it may happen that you need to change this
 default layout.  The layout is controlled through a large number of
 ‘knobs and switches’ collectively called ‘properties’.  A tutorial
 introduction to accessing and modifying these properties can be found in
 the Learning Manual, see See(lilypond-learning)Tweaking output.
 This should be read first.  This chapter covers similar ground, but in a
 style more appropriate to a reference manual.
 
    The definitive description of the controls available for tuning can
 be found in a separate document: Seethe Internals Reference
 (lilypond-internals)Top.  That manual lists all the variables, functions
 and options available in LilyPond.  It is written as a HTML document,
 which is available on-line
 (http://lilypond.org/doc/stable/Documentation/internals/), and is also
 included with the LilyPond documentation package.
 
    Internally, LilyPond uses Scheme (a LISP dialect) to provide
 infrastructure.  Overriding layout decisions in effect accesses the
 program internals, which requires Scheme input.  Scheme elements are
 introduced in a ‘.ly’ file with the hash mark ‘#’.(1)
 

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