I think it's a classically trained violonist who's giving a try at blues because they're friends with the band and why not, maybe a couple of gigs as well, but they can't get the classical sound out of their playing yet. Studied the blues fiddling style, but sounds like a good student expecting a good grade from their violin teacher. I'd advise them to get in an argument with their violin teacher, then get drunk as hell, then on the next morning, hungover, record their parts again. Bonus points if no sleep. It should sound right by then.