His labyrinthine, theatrical works placed him in the first rank of 20th-century English composers, though his music was often tagged as “difficult.”His labyrinthine, theatrical works placed him in the first rank of 20th-century English composers, though his music was often tagged as “difficult.”Read MoreClassical Music, Deaths (Obituaries), Opera, Birtwistle, Harrison, The Minotaur (Opera), England