The first empty hand form (Yilu Changquan) of t'ai chi ch'uan/Taijiquan, (Chinese: 太极拳; pinyin: Tàijíquán), is a version of Tai chi composed of Seventy-Two movements, This Taolu it's a Basic one to learn in Chen-Style Taijiquan.
When learning Laojia, the student first learns large, simple movements and gradually refines the form and internal alignment. Chen Fa Ke, the famous master who brought Chen Style to Beijing in the middle of the twentieth century, was a student of this “Old” and “Large” Frame. The Chen lao jia (old frame; 老架) consists of two forms yi lu (1st routine) and er lu (2nd routine) It was taught privately in Chen Village from the time of Chen ChangXing—the 14th generation creator of these routines.
Chen Changxing (陈长兴 1771-1853) is credited with being the first to condense all the routines previously practised into two essential routines. The primary long routine is known as “yilu changquan” (literally “first road long fist”). It trains the core principles of the art developing efficient structure and internal power, while spacing certain patterns and repeating the most important movements more often than others. The routine is not just a combination of techniques, but a very well considered training system. It is well designed, and any subsequent attempts to simplify the routine usually yield inferior results.
Chen Changxing is also famous for teaching Yang Luchan (the founder of Yang Style tai chi). The traditional Yang style long routine is the result of his training with Chen Changxing.