Posted
It is nice that Synfire seemingly offers to export individual containers. At least containers offer export options in their context menu.
Unfortunately, this does not seem to work. When I tried to export a later container as a MIDI file, then instead some part of the piece from the very beginning was exported. Trying to export a later container as a MusicXML file resulted in a file that MuseScore could not open, when exporting the while piece into MusicXML works (with the same export settings).