> It might be worth if your software engineeers for the plugin have a deeper look into the ARA protoco

Yes, we’ve had a look at that. It seems ideally suited to modifying a selected region of DAW audio. I’m not aware of what information it can get from a DAW when playback isn’t happening, such as the full tempo map, or chord names.
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Have Fun!
Peter Gannon
PG Music Inc.