appoggiatura and clef woes

[Julien Salort]

Hi,

I don't understand why the following snippet does not give the desired
result.
I get two clefs one after the other...

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\version "2.2.1"

\score {
    \notes <<
        \new Staff {
            \clef bass
            \time 2/4
            r2
            }
        \new PianoStaff <<
            \new Staff {
                \clef violin
                \time 2/4
                r2
                }
            \new Staff {
                \clef bass
                \time 2/4
                << { <e a c'>4 <e a c'>8 <e a c'>8 } \\
                   { \appoggiatura gis,16 a,2 } >>
                }
            >>
        >>
    }
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

-- 
A: Because it messes up the order in which people normally read text.
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