Various Crashes (working with Cantai)

My machine has sent you many crash dumps today because it’s quite easy to crash Dorico when using Cantai on a medium sized project.
Deus Dominus Fortitudo Mea - WORK10.dorico (1.5 MB)
Simply put if Cantai is still rendering something and I also edit the Dorico file “in certain ways” then it will crash. For your additional information (which I assume the crash dumps don’t tell you) if all the Cantai visible windows disappear then it means Dorico will crash. Actually I can continue making edits in Dorico but the moment I press "control S to save "Dorico will hang and I’ll have to kill it in task manager.


In certain ways” includes cleaning up the dynamics - e.g. removing contradictory dynamics and getting all the crescendos into decrescendos to line up. Anything that causes a refresh-cache in Cantai might cause trouble.

For those with similar problems the workarounds are:

  • Keep an eye on task manager and wait for peace
  • Temporarily turn off Cantai until you really need the words audible.

I am sending you this message not because I am upset or unhappy about the situation but because I want to help you improve the software. Using Cantai directly in composing is an amazing experience and a huge privilege - the only composers who have ever enjoyed similar privileges were those who worked for large cathedral institutions etc and could get stuff sung whenever they needed it. I’ve attached a draft of what I’m working on - I’m sure you can soon crash it by moving dynamics about.

additional information 03/09/2026.

It only crashes if work is bigger than a certain size. I don’t know what that limit is -some of my small arias do not crash - some of the bigger arias crash very quickly.

As may crash about every 2 minutes its sending crash dumps that often as I restart Dorico. In a big aria I’m able to make about three edits per session before it crashes. Please don’t discard the crash dumps because you’ll think they’re being sent from some automated “BOT” - they are not; they are real!

I’ve found that when adjusting the dynamics in certain places in the key editor using independent playback (where the dynamic must be entered with ALT+ENTER to apply to just an individual line) that the Dorico audio engine shuts down and no further playback is possible. I have never experienced this without independent playback (the majority of my vocal works don’t in fact use it) Originally i thought it was a global reproducible issue but now have discovered it doesn’t in fact always happen but it would be interesting if others have discovered this.

Having been away, I’m only just starting to look at Cantai 2.0.3 so other things might raise their head. The most obvious immediate audible change from my previous version was that all the dynamics seem louder for reasons best known to themselves.