Yes, this is an intriguiging find! I have been writing the company for a few months now, but can get no response. I'll ask my Italian correspondent to see if he can help. The author also recorded a Taraffo CD in 2004 (which Ben just discrovered), but the music - transcribed from the original 78s, may be arranged for 6-string only.
Meanwhile, zero word on the new Taraffo double-CD, or use of the "secret video." The project seems to have stalled.