“Alison Cotton has long wuthered on the wilder fringes of folk music. She played the viola in folk-rock revivalists the Eighteenth Day of May (signed to Joe Boyd’s Hannibal label) and still performs in the Left Outsides, her duo with husband Mark Nicholas, casting traditional music’s spirits and sounds in uncanny colours. Her recent solo work has been even more eerie and filmic, a mood her latest a”