The 9/8 time signature was included in release 4.1! 🎉 Please download the latest release and let me know what you think. Thanks! Best, Derek

(Note that there are other ways to notate 9/8; if you are looking for a different way to notate 9/8 such as 2+2+2+3, then this will be included in a future update with similar time signatures like 5/8, 7/8, 11/8, etc).

Updating this back to "Planned" as all development work has been paused in order to resolve other critical and outstanding technical issues.

I will resume development of this in the near future. Thanks for your understanding! 🙇🏻‍♂️

Given the relationship between this time signature and 6/8 and 12/8, I've decided that all of these should be implemented together as opposed to separately. It's going to take some time to iron out the complexities here, and I appreciate your support and patience while I work through these challenges!

Planned for a future 3.x release.