"Three chords and the truth" reads the tattoo on the right forearm of Rose-Lynn Harlan. That fundamental recipe was coined by another Harlan, American songwriter Harlan Howard providing his abiding definition of country music in the 1950's. This is the sort of thing Rose Harlan would know, country music historian and aspirant that she is. Unlike many a music enthusiast from the United Kingdom, Rose has a deeper knowledge of and feeling for American roots music than most Americans. One of the strengths of Wild Rose is that we are dealing in a fairly genuine country music here (not "Country & Western;" Rose bristles whenever anyone attaches that common old term to her singing), as opposed to the sort of bathetic sludge that tends to clog "country" radio these days in America. Wild Rose is like a deeply felt old country song, a bit careworn and certainly predictable. But thanks to Jessie Buckley, playing Rose with a bone-deep consistency,...