Setting a global default for the \paragraph macro (NR Section 7.4.4)?

[Reinhold Kainhofer]

In the NR in Section 7.4.4 
(http://lilypond.org/doc/v2.11/Documentation/user/lilypond/New-markup-list-command-definition
 ) 
there is a definition of the \paragraph markup list command, which indents 
the first line by the value of the property 'par-indent. There is also an 
example how to override that property to a different value, but apparently 
the \override-lines macro works like \once\override and not like \override, 
i.e. it works only for the very next call of \paragraph, but not for 
subsequent calls.

This also means that I cannot globally change the indentation of the 
paragraphs (except changing the hard-coded default in the definition, which 
is not what I want, because the definition is in an external style sheet, 
included by multiple different scores with different formatting styles).

So, how can I globally change a property like par-indent or line-width?

Thanks,
Reinhold

-- 
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Reinhold Kainhofer, Vienna University of Technology, Austria
email: address@hidden, http://reinhold.kainhofer.com/
 * Financial and Actuarial Mathematics, TU Wien, http://www.fam.tuwien.ac.at/
 * K Desktop Environment, http://www.kde.org, KOrganizer maintainer
 * Chorvereinigung "Jung-Wien", http://www.jung-wien.at/