one step away (Spanish: Por una Cabeza) is a famous Spanish tango song, violin piece Por Una Cabeza. The Chinese translation is called "One Step Away", which was composed by Argentine singer carlos gardel in 1935 and written by Alfado Lepera. The Spanish word "Por una Cabeza" was originally a horse racing term, meaning "one head short". It is used in songs to express the regret that lovers are complicated and difficult to give up.