I'm not back in Tokyo yet so no karaoke. My wife took vocal lessons when she was younger, even so I'm not quite sure she can do some of that traditional nasal singing. I told her if they are playing anywhere when I get back I am going to drag her to the concert too. I'll wear my cowboy hat and rock out with the glow sticks too embarrass her.
Are you familiar with the Yoshida Brothers and their collaborations? Wicked shamisen players.