> The key point is that with qpdf one can edit the *qdf* file (i.e
> notation.qdf in our case) and call
>
> fix-qdf notation.qdf > notation-edited.pdf
>
> to have a pdf.
OK – I hope you can find and fix the problem easily. If this doesn't
work I can provide a large tarball with all of the necessary LilyPond
input files.
Werner