Tai chi
In addition to Dragon-Tiger chi gung, I practice a short form of Yang style tai chi that has about 10 movements. I have had experience with other forms, having several sessions with a talented teacher of the 37-form Yang style taught by Chen Man-Ch'ing, but have not been able to fully complete learning the form. The 10-movement form takes only a few minutes to do and it allows you to experience the circularity of the movements, flow and it gives me the ability to experiment or "play" with the movements internally.