I recently started a rather similar thread and Horns were the biggest problem. It does look as if this whole area is going to be looked at. In case it might be helpful, here is that thread Player handling in MusicXML Flow Import Options
I recently started a rather similar thread and Horns were the biggest problem. It does look as if this whole area is going to be looked at. In case it might be helpful, here is that thread Player handling in MusicXML Flow Import Options