Appoggiatura + Double Bar Line

[Will Oram]

I tried all the tricks I know to keep an appoggiatura in the same bar 
as the note it slurs to; this one case seems to be different from all 
my experiences in the past.

bar "||"
\appoggiatura a,8( fsharp'8\p) r fsharp2 e16[( d fsharp a])         |

In other words, a double bar followed by an appoggiatura, followed by 
music. (Bonus points for identifying what music it is!) When outputted, 
a single barline is created, the appoggiatura follows, THEN the double 
barline appears, followed by the music. I've tried \bar "", << { 
\appogiatura music } \\ { s8 } >>, etc.; nothing works.

Suggestions?

Will Oram
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