Welcome to the forum, Phil. I’m afraid there’s no news on this front just yet, though we definitely plan to implement full tempo sync for Dorico and its audio engine in a future version. Unfortunately it’s not a small job. My colleague Ulf has suggested a way we could implement a simple version that would work if you enable fixed tempo mode in Dorico, but of course this would then preclude any projects with any kind of flexibility of tempo, which would be quite a significant limitation.