He is a baritone. Baritone really just refers to the sound of voice when it comes to professional singers. The dude from Coldplay is a high baritone and the guy from Radiohead is a low tenor. They have similar ranges and styles but one is meatier and the other is thinner sounding. Good singing suggestions for baritones: You can sing any song you know, Just sing it a third down. Always sing in your comfortable range. If it's hard to do when you first start out, don't do it. Sing comfortably all the time till you're confident doing that.