Re: Issue 1034 in lilypond: Documentation: categorizing music-function docstrings

[lilypond]

Comment #1 on issue 1034 by n.puttock: Documentation: categorizing  
music-function docstrings
http://code.google.com/p/lilypond/issues/detail?id=1034

IIUC, there are only three reasons for using music functions (unrelated to  
the
convenience of automatic docstrings):

1) The command takes arguments (the majority of course :)

2) The command can be invoked at toplevel as well as in music (e.g.,  
\pageBreak)

3) The command does something unrelated to music, but uses a void function  
to prevent
scheme evaluation by the parser (e.g., \pointAndClickOn)

In the case of \breathe, it shouldn't be in music-functions-init.ly since  
it would
work perfectly well as an identifier.

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