 The magazine's serious approach to rock music and culture, under the editorship of Ray Coleman, secured "MM" a huge circulation by the close of the 1960s and the start of the 1970s.It left "New Musical Express", a more pop-orientated weekly, in its wake as "MM" caught the mood of rock followers at a time when the music had transcended its Top 40 roots to become a powerful symbol of social and cultural change.Williams was a vocal and influential supporter of Bob Marley during the early seventies.