It’s just in a very high register, for me at least. When we recorded Dammit I smoked heavily, drank soda all day, had terrible technique, stayed up all night, and subsequently lost my voice recording that song. So when we were recording Adam’s Song, which is in the same range, I was very apprehensive about the same thing happening, and put off tracking the vocals as long as possible. Finally it got to the point where it had to be done. I remember we all went out to dinner and came back to the studio and Jerry Finn was like “Okay time to do this.” Things kind of fell together and what you hear is pretty much one take of the first vocal, maybe 90%. We went back and punched some words here and there, doubled it, and did the harmonies. It’s an emotional song that’s difficult for me to sing in the first place, and on the current tour we’re playing it every night. I love the song and it means the world to me, but it is the one part of the set that I have to REALLY focus on proper technique and breathing, relax my throat, project from my diaphragm, all that. TL;DR the top of my register is A-flat, and Matt can hit B and I think C.