Before learning Yang Taiji Sword, it is better to learn twenty-four types to simplify Tai Ji Chuan. Because Tai Ji Chuan's 24-style simplification is a popular fitness routine promoted by the state, it is conducive to practicing Yang's Taiji sword in the future. In addition, from a technical point of view, mastering Tai Ji Chuan is the basis of learning Taiji sword, because many techniques and requirements of Taiji sword are consistent with those of Tai Ji Chuan.

As for Yang's Tai Chi sword, you can refer to the following information:

1. Before learning Yang Tai's swordsmanship, learn Yang Tai's basic routines and corresponding techniques.

2. When practicing Yang Tai Tai Ji Chuan, you should choose a Tai Ji Chuan and corresponding techniques according to your physical condition and hobbies.

Please note that the above suggestions are for reference only, and the specific learning methods and order can be determined according to personal circumstances. If you have any specific questions about Tai Ji Chuan or Taijiquan, it is recommended to consult a professional coach or a martial arts expert.