Gang of Four's Andy Gill was one of the most influential rock guitarists of the last 40 years and there are echos of his taut sound -- when people call post-punk guitars "angular," Andy Gill pretty much invented that. It's no surprise that tributes have been pouring out since news of his death, including many musicians he influenced, such as Rage Against the Machine's Tom Morello, the Red Hot Chili Peppers (Gill produced their debut album) and Flea, REM's Mike Mills, fellow Leeds post-punks Mekons, Blur's Graham Coxon, Mark Stewart of The Pop Group, Afghan Whigs' Greg Dulli, Gary Numan, The Futureheads (Gill produced their debut), Colin Meloy, Noveller's Sarah Lipstate, Geoff Rickly, and more. Read those below.