Question: "Begin Again" was co-produced by Taylor Swift and another record producer working in which field of music ?

Context paragraphs:
Begin Again (Taylor Swift song): "Begin Again" is a song written and recorded by American singer-songwriter Taylor Swift for her fourth studio album, "Red" (2012).  Swift co-produced the song with Nathan Chapman and Dann Huff.  Initially released as a promotional single on September 25, 2012 by Big Machine Records, the song served as the second single from "Red" on October 1, 2012.  "Begin Again" is a country song, with the lyrical content finds Swift falling in love again after a failed relationship.

Fearless (Taylor Swift album): Fearless is the second studio album by the American singer-songwriter Taylor Swift.  The album was released on November 11, 2008, by Big Machine Records.  As with her first album, "Taylor Swift", Swift wrote or co-wrote all thirteen tracks on "Fearless".  Most of the songs were written as the singer promoted her first album as the opening act for numerous country artists.  Due to the unavailability of collaborators on the road, eight songs were written by Swift.  Other songs were co-written with Liz Rose, Hillary Lindsey, Colbie Caillat, and John Rich.  Swift also made her debut as a record producer, co-producing all songs on the album with Nathan Chapman.

Fifteen (song): "Fifteen" is a country pop song performed by American singer-songwriter Taylor Swift.  Swift self-penned the song and co-produced it along with Nathan Chapman.  "Fifteen" was released on August 30, 2009 by Big Machine Records, as the fourth single from Swift's second studio album, "Fearless" (2008).  The song was inspired by Swift's freshman year of high school at Hendersonville High School, where she first encountered heartbreak, along with her best friend Abigail Anderson.  After writing it, Swift asked Anderson for authorization to record the song (due to personal references in the song); Anderson affirmed and it was ultimately included on "Fearless".  "Fifteen" is a ballad, which has Swift reminiscing on events that occurred to her and her best friend at the age of 15 and cautioning teenagers to not fall in love easily.

Nathan Chapman (record producer): Nathan Chapman is an American record producer who works in the field of country music.  He is known primarily for working with Taylor Swift, having produced her albums "Taylor Swift", "Fearless", "Speak Now", "Red" and "1989".  The former was also the first album that he produced.  He is a 2001 graduate of Lee University.  He was said to be working in a shack before producing music with various artists.

State of Grace (Taylor Swift song): "State of Grace" is a song by American singer-songwriter Taylor Swift from her fourth studio album "Red" (2012).  It was released to the iTunes Store on October 16, 2012, in the United States by Big Machine Records as the fourth and final promotional single from the album.  It was the only promotional single from the album that was not re-issued as an official single, as "Begin Again", "Red", and "I Knew You Were Trouble", were all later re-issued as official singles.  The song was written by Swift and produced by Nathan Chapman and Swift.  Musically, the song is a departure from Swift's typical country pop, using influences of alternative rock while being compared to bands such as U2, Muse and The Cranberries.  The song has received immense praise from music critics, who have complimented its broader sound in comparison with Swift's previous material.

Fearless (Taylor Swift song): "Fearless" is a country pop song performed by American singer-songwriter Taylor Swift.  The song was co-written by Swift in collaboration with Liz Rose and Hillary Lindsey and produced by Nathan Chapman and Swift.  "Fearless" was released on January 3, 2010 by Big Machine Records as the fifth and final single from Swift's second studio album of the same name (2008).  Swift composed the song while traveling on tour to promote her eponymous debut album, "Taylor Swift" (2006).  She wrote "Fearless" in regard to the fearlessness of falling in love and eventually titled her second studio album after the song.  Musically, it contains qualities commonly found in country pop music and, lyrically, is about a perfect first date.

Beautiful Eyes: Beautiful Eyes is the second extended play (EP) by American singer-songwriter Taylor Swift.  The EP was released on July 15, 2008 by Big Machine Records exclusively to Walmart stores in the United States and online.  The limited release EP has a primarily country pop sound and features alternate versions of tracks from her debut album, "Taylor Swift" (2006), and two original tracks, "Beautiful Eyes" and "I Heart ?" , songs which she had previously written; a DVD, featuring music videos of singles from "Taylor Swift", is also included on the physical release of the EP.

Taylor Swift (album): Taylor Swift is the debut studio album by American singer-songwriter Taylor Swift, released on October 24, 2006, by Big Machine Records.  Swift was 16 years old at the time of the album's release and wrote its songs during her freshman year of high school.  Swift has writing credits on all of the album's songs, including those co-written with Liz Rose.  Swift experimented with several producers, ultimately choosing Nathan Chapman, who had produced her demo album.  Musically, the album is country music styled, and lyrically it speaks of romantic relationships, a couple of which Swift wrote from observing relationships before being in one.  Lyrics also touch on Swift's personal struggles in high school.

Change (Taylor Swift song): "Change" is a song performed by American singer-songwriter Taylor Swift.  Swift self-penned the song and co-produced it alongside Nathan Chapman.  The song was released on August 8, 2008, with all proceeds being donated to the United States Olympic team.  "Change" was written about Swift's hopes and aspirations in regards to succeeding, although being signed to the smallest record label in Nashville, Tennessee.  The track was later chosen as one of the themes for the 2008 Summer Olympics and was included on the "AT&T Team USA Soundtrack", which was released August 7, 2008.  The song was later included on Swift's second studio album "Fearless", which was released in November 2008.  "Change" is musically pop rock and uses divergent string instruments.  Lyrically, it speaks of overcoming obstacles and achieving victory.

Teardrops on My Guitar: "Teardrops on My Guitar" is a song by American singer-songwriter Taylor Swift.  The song was co-written by Swift, alongside Liz Rose and produced by Nathan Chapman with Swift's aid.  "Teardrops on My Guitar" was released on February 19, 2007 by Big Machine Records, as the second single from Swift's eponymous debut album (2006).  The song was later included on the international release of Swift's second studio album, "Fearless" (2008), and released as the second pop single from the album in the United Kingdom.  It was inspired by Swift's experience with Drew Hardwick, a classmate of hers for whom she had feelings.  He was completely unaware and continually spoke about his girlfriend to Swift, something she pretended to be endeared by.  Years afterwards, Hardwick appeared at Swift's house, but Swift rejected him.  Musically, the track is soft and is primarily guided by a gentle acoustic guitar.  Critics have queried the song's classification as country music, with those in agreement (such as Grady Smith of "Rolling Stone") citing the themes and narrative style as country-influenced and those opposed (such as Roger Holland of "PopMatters") indicating the pop music production and instrumentation lack traditional country elements.

Supporting paragraphs: Begin Again (Taylor Swift song) Nathan Chapman (record producer)
Answer: country music