Re: The techniques of Budo Renshuu #50-60
When I watched the videoclip I saw a strong similarity with techniques from Tomiki's Aikido Koryu no kata. It is said the koryu no kata is based upon techniques learned by Kenji Tomiki and Hideo Ohba at Ueshiba's dojo. Btw it seems KenJi Tomiki was involved in editing this book.
Just a thought,