Expose tie information read-only to QML plugins
QML plugins need to know when notes are merely members of a chain of tied notes, i.e., that adjacent notes are tied. This is an essential part of the musical content of a score, and any plugin attempting to process a score, either for musical analysis or conversion to some other format, needs to know this. What's more, MuseScore is somewhat picky about what articulation parameters (on-time, len) for such notes mean, and where articulation parameters for chains of tied notes should be placed. The ability of plugins (especially new ones concerning articulation parameters already proving useful) to read note tie relationships is essential to the progress of these capabilities.
Access to the firstTiedNote/lastTiedNote and tieback/tieforward objects and their start/end notes is sorely needed at this juncture (and has been prototyped in private builds).