Bert Berns was one of the greatest unknown songwriters and producers of the 20th century, with a song catalogue that includes ‘Twist & Shout’, ‘Under the Boardwalk’, ‘Piece of My Heart’, and ‘Here Comes the Night’. Trevor Reekie talks to American author and music journalist Joel Selvin about his new Berns biography Here Comes the Night: The Dark Soul of Bert Berns and the Dirty Business of Rhythm and Blues.