The suggested synchronization isn't possible. In the project options we have global settings while in the timeline there are local values, and there can be different values at different audio key points.
I would like to agree that it would be helpful to have manual input for audio key points.
Hello everyone. I experimented a little with parallax. In this case, the masks are round, with rectangular ones still to be worked on. I gave you an idea, develop it.
Download link: https://disk.yandex.ru/d/Ioxt9BBxj1mS8Q