There are many ways to approach shakuhachi repairs since there are many different kinds of damages, and often times each is unique to the individual flute. Most often, I choose the non-invasive method. This means that if a repair can be undertaken without removing any of the original parts, such as filling an utaguchi chip instead of replacing the horn inlay or topical binding instead of inlay rattan, I would go that route first. I believe that the non-invasive method respects the bamboo spirit and the the structural integrity of the instrument. The photos above shows a crack two-piece flute with three different kinds of topical bindings performed by three different repairmen. Any repair can be beautiful in a Zan Wabi Sabi way.
This photos shows a loose joint being refitted by layering several coats of Japanese Urushi lacquer - the hardest lacquer around. Sometimes repairs can be simple and other times tricky. Bamboo shrinks and swells slightly to humidity change, some say it’s is alive. It doesn’t always do what you expect it to do (kind of like my children).