D'Angelo: The pioneer who charted a new course for soul music

Steven McIntoshEntertainment reporter Getty ImagesThere aren't many musicians whose sound is so distinctive and influential that the music industry invents a whole new genre to describe it. But D'Angelo, who has died at the age of 51, was seen as a trailblazer, thanks in large part to his groundbreaking debut album Brown Sugar, released in July 1995. With its slow tempos and smooth vocals, D'Angelo's chilled-out,…