[MusicXML export] Add placement attribute in tuplet at MusicXML export
Upon exporting to MusicXML, the
placement attribute (below/above) within the
tuplet element is not exported. (This would be a great little feature for interoperability.) When re-importing it into MuseScore (or other notation software), the number placement is reversed (apparently taking default settings).
Other attributes as
bracket (yes/no) and
show-number (actual/both/neither) work fine.