Hyung
Forms (hyung) varies on the founder or head of the different federations of Tang Soo Do. Tang Soo do forms are a set among of moves demonstrating a defensive or aggressive action for every movement, they were taken mainly from japanese shotokan karate kata. They are based on an offender attacking and one demonstrating the form reacting to their attack.
They are generally memorized and demonstrated at a test for ranking up or a tournament.
Traditionally, nine forms are included in the curriculum of most Tang Soo Do school which are required study to earn the Midnightblue Belt. These hyung are:
Kee Cho forms: ( Kee Cho Il Bu, Kee Cho Ee Bu, Kee Cho Sam Bu) The Kee Cho series are basic forms by Hwang Kee based upon those of Gichin Funakoshi, from shorin ryu karate.
Pyung Ahn forms: (Pyung Ahn Cho Dan, Pyung Ahn Ee Dan, Pyung Ahn Sam Dan, Pyung Ahn Sa Dan, Pyong Ahn Oh Dan) The Pyung Ahn series were adopted from Okinawan & Japanese Karate, where they are called Pinan / Heian and are the creation of Yasutsune Itosu.
Bassai(also known as Pal Che) The Bassai form is also from Karate (where it is called Passai / Bassai Dai ) and was created by Bushi Sokon Matsumura.
According to Hwang Kee he learned these forms from studying Japanese books on Okinawan Karate. Most scholars agree the primary text Hwang Kee relied upon was Gichin Funakoshi's Karate-jutsu published in Japan in 1939.
Read more about this topic: Tang Soo Do