In this video Master Ziji explains the particular Liang Yi movement: "Snake and Turtle in One". This movement is a very complicated and hard one and often needs corrections. Check out this video if you are interested in Liang Yi (Xuan Wu Quan).
Master Ziji quickly explains each Tai Yi Wu Xing Quan step from different angles. The video is 56 minutes long and is a full class about the Tai Yi Wu Xing Quan movements. The video is aimed at people who learned the form already but need corrections or simply want to double check!