Fwd: Problem with one staff

[Maria Jesus Marin]

Good afternoon,

I have one problem with one composition. My problem is that I have writted
the composition in Musescore, but when I export to xml and I import the xml
file in to Frescobaldi the staff duplicate lines.
I attach the musescore file, xml file, and pdf file for your information.
Can you help me? Can you tell me why the process is not working well?
Best regards,
María.

Rêverie-musescore.pdf
Description: Adobe PDF document

Rêverie-frescobaldi.pdf
Description: Adobe PDF document

Rêverie-1.ly
Description: Text Data

Rêverie.xml
Description: Text Data

Rêverie.mscz
Description: application/musescore