Question: Both Should Have Known Better and Carrie & Lowell have which instrumentalist playing on them?
Context: The Broadside Tapes 1, alternatively known as "Broadside Ballads, Vol.  14", was a compilation of demo recordings done by Phil Ochs for "Broadside" magazine in the early-to-late 1960s.  Of the sixteen songs that appeared, ranging from the humorous ("The Ballad of Alferd Packer") to the depressing ("The Passing of My Life"), all were new to listeners.  It also included a song about the Profumo affair ("Christine Keeler") and it closed with a live cover of The Beatles' "I Should Have Known Better" (retitled "I Shoulda Known Better") featuring Eric Andersen on harmony vocals and harmonica. Richard Nunns QSM (born 1945) is a Māori traditional instrumentalist of Pākehā heritage.  He is particularly known for playing the Taonga pūoro and his collaboration with fellow Māori instrumentalist Hirini Melbourne.  Since Melbourne's death, he is regarded as the world's foremost authority on Māori instruments. "I Should Have Known Better" is a song by English rock band the Beatles composed by John Lennon (credited to Lennon–McCartney), and originally issued on "A Hard Day's Night", their soundtrack for the film of the same name released July 10, 1964.  "I Should Have Known Better" was issued as the B-side of the U.S. single "A Hard Day's Night" released July 13, 1964.  An orchestrated version of the song conducted by George Martin appears on the North American version of the album, "A Hard Day's Night Original Motion Picture Soundtrack." "U Should've Known Better" is a song by American recording artist Monica.  It was written in collaboration with Harold Lilly and Jermaine Dupri, and produced by the latter along with frequent co-producer Bryan Michael Cox for her original third studio album, "All Eyez on Me" (2002).  When the album was shelved for release outside Japan, the song was one out of five original records that were transferred into its new version, "After the Storm" (2003).  A contemporary R&B slow jam, "U Should've Known Better" contains elements of soul music and rock music.  Built on an pulsating backbeat, the song's instrumentation consists of screeching guitars and an understated harp pattern.  Lyrically, Monica, as the protagonist, delivers a message of loyalty to her imprisoned love interest and sings about staying down for him despite his doubts. Ahmed Mahmoud Zuway (Arabic: أحمد الزوي‎ ‎ ) (born December 28, 1982), better known better as Kabila, is a Libyan football striker.  He currently plays for Ahly Benghazi in the Libyan Premier League.  He is a member of the Libyan national football team.  He is known for his excellent heading ability and goal scoring. David Scott Lucas (born May 10, 1970), known better as Scott Lucas, is an American musician, who is best known for being the guitarist, bassist, and lead vocalist for Local H, as well as the lead vocalist and guitarist of Scott Lucas and the Married Men. Peter Gatonye (born November 1982), known better for his stage name Pilipili is a musician/singer from Kenya.  At the beginning of his career, he collaborated with another musician, Gun B.  Their best known song was "Nampenda".  He has also sung a song with Ratatat.  The song was called Morale. "Should Have Known Better" is a song by American singer-songwriter and multi-instrumentalist Sufjan Stevens.  It is the second track and second single from his seventh studio album, "Carrie & Lowell", and was released digitally on March 11, 2015 on Asthmatic Kitty.  A promotional CD was later released on Asthmatic Kitty but was not available for sale. Malcolm Richard Laycock (1 November 1938 – 8 November 2009) was a schoolteacher until moving into broadcasting, initially on Radio London.  He is now known better as a British radio presenter and producer, best known for his work on programmes related to jazz, dance band and big band music.  During his career he presented shows for both BBC Radio 2 and the BBC World Service.  Between 1995 and 2009, he was also the host of "Sunday Night at 10", a long running weekly Sunday evening show on Radio 2. Carrie & Lowell is the seventh studio album by American musician Sufjan Stevens, released through Asthmatic Kitty on March 31, 2015.  Unlike Stevens's previous studio album, the electronic "The Age of Adz", "Carrie & Lowell" is sparsely instrumental and marks a return to the performer's indie folk roots.  The album was given a one-week preview on NPR.
Answer: Sufjan Stevens