sorry, would it be too much to ask if you could make something that starts off slow and then picks up speed as it goes on. that's too unspecific. I mean something a little like this https://www.youtube.com/watch?v=dnYnX2WkSCk&index=81&list=PLMcvCspGNLo-9QKT3SepmG-02lkoY-m8L Something with a ...