Thank you for this extensive list. All good stuff! I’m adding all of it for my TODOs.
Just a few comments on the difficult/interesting part:
Audio trails when chancing patches would be great indeed. The main problem with this is that this require the old module and the new one loading to stay in memory and process at the same time of the overlap and thus you get a short burst of RAM and CPU usage that double up. And that’s on top of the stress of actually loading the new patch and audiounit plugins at the same time. Not really an issue on newer Macs, but I’d like to keep it as lightweight as possible and postponed this for now.
I’ll have more info on a potential HEX tracker later.
Higher notes tracking isn’t really a problem (in the way that lower notes are) but I’ll wait a bit to get back to tracking developments, until the application and plugins are bug free and feature complete.
Sample rates is coming of course.