Haha, thanks that’s given me some good food for thought 
Thanks too for that specific link to the tricksy bit of Dan’s talk - feels hacky but could be a way round it! I did the watch the whole thing too, some good leads about procedural music towards the end. I’ve found out a bit more about the timing issue but don’t want to derail this thread, so I’ve put it in my own question thread if you’re curious or have time to bring your expertise to it!
https://forums.unrealengine.com/development-discussion/audio/1747323-is-it-possible-to-make-a-frame-independent-click-using-timesynth