Willy Mason - Oxygen The verses are, in fact, as simple as they sound. The only really challenging part of this song is the chord sequence in the last 2 bars of the chorus. It doesn't take much shape until the chorus, but it's a satisfying thing to play if you're on your own and comfortable with singing and playing simultaniously. This may not be 100% correct, but enjoy, and improve on it if you can. note: brackets under the prechorus are to help with timing, listening to the track is always (guitartabs.cc)