How to get your horse off the forehand--dressage training on an Icelandic

Stan Hirson has recorded some of the best Icelandic horse videos ever.  In this video, instructor Trish Helmer uses music to help a young student riding an Icelandic to avoid being on the forehand.  She also explains how performing a rein back can help an Icelandic to move forward in the trot since both movements are diagonal.  Since this video is on Vimeo, I can't figure out how to embed it but you can follow the  link.

http://vimeo.com/100272017