I did some lookup as I was also interested: its a Seed Kotetsu - it's a 839mm / 29 frets / B... and he uses a capo on the 5th to go into conventional... but change it on the fly.Cool stuff!
I wonder what the scale length of that guitar is? It's got a very long neck!
I enjoyed the mix of modern and traditional instrumentation.
I did some lookup as I was also interested: its a Seed Kotetsu - it's a 839mm / 29 frets / B... and he uses a capo on the 5th to go into conventional... but change it on the fly.
His demo of the guitar (in japanese but mostly music)