The Rails are James Walbourne and Kami Thompson. They are married. James once played with the Pretenders. Kami is still the daughter of Richard and Linda Thompson. I loved their debut album "Fair Warning" so much, it was my favorite record of both of 2013 and 2014, though I didn't realize this until after I posted my year-end lists.
They are back with an acoustic E.P. titled "Australia" featuring originals and covers. One of the covers is "Low Expectations," a song written by Edwyn Collins. Give it a listen. The entire E.P. is fantastic, but this cover really is the one for me.