Жапон қылыш өнері: Мусо Дзикиден Эйшин рю мектебінің тарихы мен техникалары

infobox koryu
| nationality = Traditional Japanese martial art
| school = Musō Jikiden Eishin ryū(無双直伝英信流)
| founder = Hayashizaki Jinsuke Minamoto no Shigenobu (林崎甚助源の重信) (1542 1621)
| period founded = Azuchi Momoyama period
| date founded = Early 1600
| headmaster = Several individuals claim leadership (see below resulting in the school fracturing into multiple legitimate branches. The school takes its name from its seventh headmaster, Hasegawa Chikaranosuke Hidenobu (長谷川主税助英信), who had founded Hasegawa Eishin ryū. ‘Musō Jikiden Eishin ryū’ means ‘peerless, directly transmitted school of Eishin.’ ‘Eishin’ is an alternative pronunciation of ‘Hidenobu.’

The techniques of Musō Jikiden Eishin ryū are broken up into sets based on the principal starting position of the waza and by skill level. The majority of the study is focused on these solo waza. Musō Jikiden Eishin ryū has 45 solo waza and 45 paired waza; some of these paired waza are rarely taught. Certain lines contain additional waza, grouped under Bangai no Bu.

Solo waza use a single long sword (katana).

Musō Jikiden Eishin ryū's paired waza (kumitachi, 組太刀, Kenjutsu) are often taught only to advanced students after years of study. Some of these sets are rarely seen outside of Japan. Some ryuha have the first set (tachi uchi no kurai) as part of their yudansha curriculum. There is a high incidence of grappling, striking, and disarms in these paired sets. Some waza use both long (ōdachi) and short (kodachi) swords. Some waza begin with swords drawn; others begin with swords sheathed and employ nukitsuke (drawing) techniques. Typically these forms are practiced using bokutō; however, it is also practiced at high levels with shinken. Each of these katachi (essence of kata) was created to promote practice of a key principle of Eishin Ryu under controlled yet reasonably realistic conditions.

Tachi Uchi no Kurai (太刀打之位) is first kumitachi waza set in Eishin ryū. Both practitioners use a single long sword. The techniques are performed from a standing position. There are two versions of this set: the original set of 10 waza (Tachi Uchi no Kurai) and the revised set of 7 waza formulated by Ōe Masamichi (also known as Tachi Uchi no Kata). These two sets contain similar techniques.

Daishō Zume (大小詰) is the third of the kumitachi sets. Shidachi wears an ōdachi and uchidachi wears a kodachi. The set contains the following techniques, The Battō Hō are based on techniques from throughout the system, but are performed starting in a standing position. As these waza were added in the 20th century, they are not considered to be koryū. Eishin ryū lineages without a connection to Kōno Hyakuren do not generally practise these techniques. Therefore, these waza are only included in some lines of transmission.

In his book Musō Jikiden Eishin ryū Iai Heihō Chi no Maki, Masaoka Katsutane states that there were once two auxiliary arts practised alongside Tosa Eishin ryū.

This subsumed art focused on the bō, or long staff. It featured 5 kata of bō vs. bō and 8 kata of bō vs. sword.

This subsumed art focused on grappling techniques in a variety of circumstances: standing, kneeling, from behind, etc. The school was divided into 6 sets with 63 kata. Natsubara ryū seems to be no longer extant. In addition to the bojutsu and yawara, Masaoka's book also makes mention of other techniques, such as torinawa (rope tying) and jōjutsu (short staff).

Lineage from Hayashizaki Jinsuke to Gotō Magobei is taken from Mitani, p. 25–26. Ikeda gives the pronunciation for Masaoka's name, 壹實, as "Katsutane," although it is often romanized as "Kazumi." "Ikkan" was Masaoka's nickname, derived from another pronunciation of the characters in his name.