 When writing the song , vocalist Chris Martin originally intended to use a church @-@ style organ for the track . Unable to gain access to the instrument , Martin instead used an old keyboard that his late father @-@ in @-@ law , Bruce Paltrow , gave to his daughter Gwyneth . However , in other instances Martin has claimed that " Fix You " is influenced by English alternative rock band Elbow 's 2003 anthem " Grace Under Pressure " . 
