Question: Which member of the duo who wrote "The Sound of Silence" had a musical career that spanned seven decades?

Context paragraphs:
Emil Petaja: Emil Petaja (12 April 1915 – 17 August 2000) was an American science fiction and fantasy writer whose career spanned seven decades.  He was the author of 13 published novels, nearly 150 short stories, numerous poems, and a handful of books and articles on various subjects.  Though he wrote science fiction, fantasy, horror stories, detective fiction, and poetry, Petaja considered his work part of an older tradition of "weird fiction."  Petaja was also a small press publisher.  In 1995, he was named the first ever Author Emeritus by the Science Fiction Writers of America.

Hilly Rose: Hilly Rose is an American radio personality and a pioneer of the talk radio format.  His professional career has spanned seven decades.  He was inducted into the Bay Area Radio Hall of Fame as a "Living Legend" pioneer broadcaster in 2016.

Sounds of Silence: Sounds of Silence is the second studio album by Simon & Garfunkel, released on January 17, 1966.  The album's title is a slight modification of the title of the duo's first major hit, "The Sound of Silence", which originally was released as "The Sounds of Silence".  The song had earlier been released in an acoustic version on the album "Wednesday Morning, 3 A.M.", and later on the soundtrack to the movie "The Graduate".  Without the knowledge of Paul Simon or Art Garfunkel, electric guitars, bass and drums were overdubbed by Columbia Records staff producer Tom Wilson on June 15, 1965.  This new version was released as a single in September 1965, and opens the album.

Charlie Tagawa: Charlie Tagawa (October 27, 1935 - July 30, 2017 ) was a Japanese-American musical entertainer, banjoist, and Japanese immigrant.  His musical career has spanned seven decades and as a critically acclaimed performer he was regarded as one of the best contemporary banjo players and arguably one of the all-time best.  He performed regularly across the U.S. and in Japan where he was known professionally as Japan's 'Harry Reser'.  A 2003 inductee into the National Four-String Banjo Hall of Fame, Tagawa often performed as the headline act at banjo jazz festivals and shows.  He was also the international good will ambassador for the Peninsula Banjo Band.

George Bray: George Bray (11 November 1918 – 13 February 2002) was an English professional footballer who played as a wing half.  He played his entire senior career with Burnley, making more than 250 appearances for the club in all competitions and forming part of the renowned defence known as the "Iron Curtain".  After retiring from playing he remained at Burnley, firstly on the coaching staff and later as kit man before departing in 1992.  In total, his association with the club as a player, coach, kit man and supporter spanned seven decades.

Dolores Sutton: Dolores Sutton (February 4, 1927 – May 11, 2009) was an American actress, writer and playwright.  Born in New York City as Dolores Lila Silverstein to Benjamin and Mary Silverstein, she graduated from New York University in 1948 with a B.A. in Philosophy.  Her career spanned seven decades and encompassed television, stage and movie roles.

Elisabeth Welch: Elisabeth Margaret Welch (February 27, 1904July 15, 2003) was an American singer, actress, and entertainer, whose career spanned seven decades.  Her best-known songs were "Stormy Weather", "Love for Sale" and "Far Away in Shanty Town".  She was American-born but was based in Britain for most of her career.

Paul Simon: Paul Frederic Simon (born October 13, 1941) is an American musician, singer-songwriter and actor.  Simon's musical career has spanned seven decades, with his fame and commercial success beginning as half of the duo Simon & Garfunkel, which was formed in 1964 with Art Garfunkel.  Simon was responsible for writing nearly all of the pair's songs, including three that reached No. 1 on the U.S. singles charts: "The Sound of Silence", "Mrs. Robinson", and "Bridge over Troubled Water".

Haruo Tanaka: Haruo Tanaka (田中 春男 , Tanaka Haruo , 5 March 1912 – 21 February 1992) was a Japanese film actor noted for his supporting roles in a career that spanned seven decades.

Norris Houghton: Charles Norris Houghton (26 December 1909 – 9 October 2001) was a renowned theatre visionary whose career spanned seven decades.  Credited with over 50 theatre productions, he was stage manager, scenic designer, producer, director, theatre manager, academician, author, and public policy advocate: these myriad roles reflect his chosen life as a “generalist,” a multifaceted “theatre man.”  He is celebrated for accomplishments that reflect this span: as the premier American expert of 20th-century Russian Theatre; as a major force in creating the “off-Broadway” movement and inspiring live theater throughout the country; as a mentor to actors and innovators in world theatre; as an influential advocate of arts education; and as a student and educator of global theater chosen by prestigious foundations to study and report on theater across the U.S., Europe, and Asia.  His career culminated with his accomplishments as a distinguished scholar and teacher, selected to teach and promote theatre as part of a liberal education in such prominent universities as Princeton, Columbia, and Vassar; his academic career was completed at the State University of New York, where he helped create the SUNY Purchase campus and served as founding Dean of Theatre and Film.  A prolific author, this multifaceted life is documented in his books and articles, and his work has been the subject of analysis and commentary by admiring colleagues and reviewers in numerous articles, books, journals, and newspapers.  His books and papers are preserved for study in prestigious university and college library, archives, and rare book collections.

Supporting paragraphs: Sounds of Silence Paul Simon
Answer: Paul Simon