question: Clic is a 1974 album whose music has stylistic similarities with an American composer widely regarded as one of the most influential musicians of what?
answer: the late 20th century
context: Title: Clic (album)
  Passage: Clic is a 1974 album by Italian experimental musician Franco Battiato.  The album, released on the Island Records label (catalogue ILPS 9323), is a brooding and intense collection of instrumental/vocal arrangements.  Dedicated to Karlheinz Stockhausen, the music has stylistic similarities with Philip Glass and Tangerine Dream, but is more lyrical and has elements of musique concrète.  It was later re-released on CD with a different track listing.
  Title: Andy Iona
  Passage: Andy Iona (born Andrew Aiona Long, January 1, 1902 – November 9, 1966) was an American musician and one of Hawaii's most influential musicians.  He was a composer, songwriter, conductor, saxophonist, and steel guitarist.  He went to the Kamehameha School for Boys.  He was also educated at Henri Berger's Private School of Music in Honolulu.
  Title: Philip Glass
  Passage: Philip Morris Glass (born January 31, 1937) is an American composer.  He is widely regarded as one of the most influential musicians of the late 20th century.
  Title: Pick a Dub
  Passage: Pick a Dub is a 1974 album by Jamaican producer and musician Keith Hudson.  Critically well received, it is widely regarded as an important work in the dub music genre which evolved out of reggae.  Featuring remixes of earlier material, it focuses on heavy drums and bass guitar, with echoing vocals to underscore the intense percussive rhythm.  Carlton and Aston Barrett and Augustus Pablo contributed music, while vocal fragments include Hudson, Horace Andy and Big Youth.  The album was originally released under the labels of Klik and Atra, with a 1994 reissue by Blood and Fire.
  Title: Mansel Thomas
  Passage: Mansel Treharne Thomas OBE (12 June 1909 – 8 January 1986) was a Welsh composer and conductor, who worked mainly in South Wales.  He was one of the most influential musicians of his generation, known as a composer, conductor and adjudicator.  He was for many years employed by the BBC and promoted the careers of many composers and performers.  He himself wrote vocal, choral (mixed, female, children’s and male voices), instrumental (solo and chamber), band and orchestral music, specialising in setting songs and poetry.  Many of his orchestral and chamber music pieces are based on Welsh folk songs and dances.
citations: Philip Glass Clic (album)