 " Vida " , the second single , is considered by Arjona to be an autobiographical song . He said that it " contains a good dose of the life of my old man " , as a reference to his father , Don Ricardo Arjona , who died in 2010 . In an interview , music video director Joaquín Cambre said that , " ' Vida ' is a sweet song , exciting and bitter nonetheless . I tried to represent that mix of feelings crafting an ambience of hope inside of a story that inevitably has a tragic end . Ricardo Arjona plays the song while listening to the story playing on an old disc . " Arjona said that " Marta " is " one of those songs with <unk> related to something that happened , put on the magnifying glass of the author . " When asked if " <unk> Una Canción " could be considered a guide for songwriters , he stated that " there are no guides to write songs . If any , songwriters would stop writing songs and start writing guides . " 
