Certain kinds of speed, flow, intensity, density of attacks, density of interaction... Music that concentrates on those qualities is, I think, easier achieved by free improvisation between people sharing a common attitude, a common language. ↗
If it's a modern-day story dealing with certain ethnic groups, I think I could open up certain scenes for improvisation, while staying within the structure of the script. ↗
My father was king of the guidebooks and our holidays were always planned, taking us from a great gallery to an ace cafe to a beautiful view. And as an actor, I loathe improvisation because there's no structure and no one knows what's going on. ↗