I did a freestyle test for the PC and loved it, it really helped me to relax and now whenever I ride at that venue I am so calm!
My PC dressage manager sort of started me off with the choreography, and we used a cd from RasMusic, you can buy them for £18 and they have five different tests on them - you just make up the floor plan for it

I keep meaning to do it on Gabe - I was doing it on a borrowed horse before - but just never seem to get round to it!