Exporting to MIDI, sometimes not enough information is exported (I guess), so a raising curve can happen to become horizontally straight, resulting in a clearly wrong tempo than the original.
Here the picture is self-explanatory:
In this case I’m importing to FL Studio, but keep in mind that the issue is in the MIDI file itself. Here, since it’s FL Studio, I can simply change the type of point to fix the issue, but I have to spot the point and manually fix it.
If you’d like us to investigate, please provide a minimal Dorico project that reproduces the issue when you export MIDI. Thanks!
It’s hard to reproduce from scratch, but I’ve been able to strip down a project to the bare minimum while still keeping the bug:
MIDI-export-spike-bug.dorico (528.8 KB)
Steps:
- Open the Dorico project, scroll to the end of the Tempo editor, and have a look at the tempo envelope.
- Export to a MIDI file.
- Use your favorite tool to inspect the MIDI file and note a tempo spike at the second beat of measure 69.
- Note on tick 131040 that the tempo is indeed set to 120 for no reason.
