I think he does because in this video at 6:35 he says; "If i go to a dinner party, wich i do rarley and somebody has music on I'm thniking well thats in d major and oh my god! the F# was flat!!"
Could mean two things
- He has absolute pitch and therefore he could tell what key it's in
- or he knew it was in D-Major and therefore he heard that the F# was flat, wich is'nt that much really.....
LINK THE TO VIDEO!! (youtube)