[MusicXML Import] Request to support non-standard "double-flat" tag
Attempt to import MusicXML file with "double-flat" in the note description field:
double-flat. MuseScore throws an error: " is not a valid MusicXML file."
Sometimes this crashes MuseScore.
I checked with the MusicXML standard at W3C, and both notations should be valid. The link is
MuseScore correctly imports the same indication when
For me, this is an annoyance, as I move MusicXML files between programs. It is not a "stopper", but does require the use of a text editor.