I'm thinking about players who are truly unusual, but still play what we recognize as guitar, so Derek Bailey is out. Same with Henry Kaiser. I'm asking because I can't think of anyone who isn't already known. The usual suspects are Adrian Belew, David Torn, Snake Finger, etc. Same with the young woman from Garland, TX who seems to offend so many. Can't recall her name. Anyway, who's out there that isn't well known, pushing the boundaries of guitar?