First measure partial with only grace notes

[Silvio ARDITO]

The first ( or better the "zero" ) measure contains only the following grace notes:

grace { d''16-2 [e'' fis''] }

I tried with \partial but I always got errors.
the bad solution is:

...
\time 4/4
...
\set Score.currentBarNumber = #0
s2 \afterGrace s2 { d''16-2 [e'' fis''] } |                                                                     % zero measure

\sd <g''-5 d''-2 bes'-1>8  <d'' bes'>4. <g'' d'' 
bes'>4.. ( <a''-5 es''-2 c''-1>16 ) |                          
                             % 1
...

Please , I need an help.

Ref.: Béla Bartòk,For Children I,36

ForChildrenI36.png
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