Snippet variations

[Br. Samuel Springuel]

I have some snippets which I'm including in a TeX document (via 
lyluatex, not lilypond-book, but the process is largely the same).  The 
thing is that for some of these snippets I need two variants which 
differ by the appearance of a single `*`.  I don't want to have maintain 
two full versions of the snippets, so I'm trying to figure out the best 
way to structure file inclusion and/or tags.

One of the snippets looks like this (with the `*`):

\version "2.18.2"
\language "english"
aster = \set stanza = \markup{"*"}

<<
\new Staff \with {
        \remove "Time_signature_engraver"
}
{
        \key f \major
        \set Score.timing = ##f
        \omit Stem
	f'4  g'( a' ) a' a'-- \bar "|" a' g' a' bflat' a' g' a'--( c'' ) \bar 
"|" a'( g' ) a'( f' ) f'-- \bar "||"
}
\addlyrics {
        To you, O Lord, \aster be high -- est glo -- ry and praise for -- ev -- 
er.
        }
>>

The other variant would simply remove the `\aster` call (or have it do 
nothing).  Does anyone have any suggestions for the most efficient way 
to do this?

Since it comes up almost every time I post one of my snippets: Yes I 
know about `\relative` and yes I know `bflat` can be abbreviated as `bf` 
in English.  I find both of these make the musical code harder to read 
and thus will not be changing them.  I value clarity more than 
keystrokes in this instance.
--
✝✝✝✝✝✝✝✝✝✝✝✝✝✝✝✝✝✝✝✝✝✝✝✝✝
Br. Samuel, OSB
St. Anselm’s Abbey
Washington, DC
(R. Padraic Springuel)

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