Japanese martial arts experienced alot of alterations during the time in which “Bujutsu” became “Budo”. They were further altered in great significance in both form and purpose when Japan emerged on the global stage in the late 19th century. The reasons for this are interesting and worthy of a separate discussion, but suffice it to say for now that what many people see in films like “The Last Samurai” or practice in arts like Judo and Jiu-Jitsu are only tentatively linked to what famed fighters like Musashi actually utilized.
Kono Yoshinori is a modern martial artist who is attempting to reconstruct what was authentic koryu bujutsu. His work is fascinating to observe.