Krystle Warren is a true original. Born in Kansas, she busked in New York and Paris, before her 2009 album Circles led to comparisons with Nina Simone and Tracy Chapman. She has recently become a darling of the English folk scene, appearing in tributes to Nick Drake. Now comes this brave, personal set that extends her musical range even further. It's a mostly cheerful album, with her deep, breathy voice easing between soulful balladry and scat jazz, with echoes of ragtime, gospel and country. Her assurance is as remarkable as her range, from the swinging Tuesday Morning to the grand I Worry Less, or (best of all) her string-backed setting to a William Blake poem, The Clod and the Pebble, treated as an elegant fusion of soulful hymnal and swing.