Fripp's career unfortunately has been in obscurity now for many years, nobody would have even known or realised that he'd quit if he hadn't released a statement saying that he was quitting, but at his peak he was a pretty seminal and influential figure, as well as a great guitarist, so he for sure left his mark on the rock music business. One of the more musically interesting and diverse and eclectic artists of our time, especially some of those collaborative albums that he made with people like Brian Eno, David Sylvian, Andy Summers, and David Bowie.... I even have a few of them. He surely must be in the Guinness Book of Records for the sheer number of projects he worked on either as a musician or producer.