IMO, it's pretty different from the previous Coldplay albums, Parachutes and A Rush of Blood to the Head. While they still retain the trademark Coldplay vocals and catchy melodies, some of their stuff seems to be more uplifting and cheerful than the melancholic A Rush of Blood to the Head. It's less laid-back as the two previous albums, overall it's a good album, I'm hooked onto 2 tracks, Speed of Sound and Fix It.