Hello !
So, the current stable version has no notion of tempo.
However, the next version (current alpha), has a notion of hierarchic & polyrythmic tempo, which should be able to do what you want… mostly.
What does “Ability to synchronize “on the fly” tempos, volumes or other parameters of the score” mean for you, precisely ?
Midi items editing (I know it’s already there) with the possibility of integration randomness/generative processes
That’s a good idea, being able to generate some midi. Though I wonder if you wouldn’t be better served by using OpenMusic for this part as this is likely the best available tool right now for generative MIDI.
Will make a short video to give you an example of what will be available in the next version so that you can tell me if that’s what you need.