[Musicxml Export] - Triple and Quadruple Dots not exported correctly

• Sep 16, 2020 - 23:59
Reported version
3.5
Type
Performance
Frequency
Once
Severity
S2 - Critical
Reproducibility
Always
Status
closed
Regression
No
Workaround
No
Project
MuseScore

When I was transcribing a contemporary piano piece into braille, I met this problem. In this short example, both triple and quadruple dotted quarters are exported as halves into Musicxml. The durations are correct, triple dotted C 32 and quadruple dotted 31, but the types are wrong, and there are no dots under the type line.

Attachment Size
triple_quadruple_dots.mscz 3.24 KB
triple_quadruple_dots.musicxml 4.31 KB

Comments

• Sep 20, 2020 - 08:00

The cause for this issue is not in the MusicXML code. I have traced it and found the cause in TDuration::setVal(int ticks), which only support two dots instead of four. In the function there is a magic constant "4", which should actually be 2 to the power of MAX_DOTS.
Will prepare a separate pull request for this, as it is hard for me to judge the impact of that fix. PR should also include an updated MusicXML test file.

Reply

Fix version
3.5.1