Hello. I play a beginners nagauta shamisen. It has a nice sound, but does not have a sawari azuma installed so it does not buzz. I noticed someone selling a shamisen capo with a sawari adjuster on another site. Here it the link:
http://www.kotosandmore.com/capo.html
I was wondering if anyone was familiar with this device and knows if it might be able to be used to produce sawari on my shamisen?