Information:  - Nicholas Rodney "Nick" Drake (19 June 1948  25 November 1974) was an English singer-songwriter and musician, known for his acoustic guitar-based songs. He failed to find a wide audience during his lifetime, but his work has posthumously achieved wider notice and recognition.  - The Band was a Canadian-American roots rock group, originally consisting of four CanadiansRick Danko (bass, vocals), Garth Hudson (keyboards), Richard Manuel (piano, vocals), and Robbie Robertson (guitar)and one American, Levon Helm (drums, vocals). The members of the Band first came together as they joined the rockabilly singer Ronnie Hawkins's backing group, the Hawks, one by one between 1958 and 1963.  - Kings of Convenience is an indie folk-pop duo from Bergen, Norway. Consisting of Erlend Øye and Eirik Glambek Bøe, the musical group is known for their delicate tunes, calming voices, and intricate and subtle guitar melodies. Øye and Bøe both compose and sing the songs.  - A record producer or music producer oversees and manages the sound recording and production of a band or performer's music, which may range from recording one song to recording a lengthy concept album. A producer has many roles during the recording process. The roles of a producer vary. He or she may gather musical ideas for the project, collaborate with the artists to select cover tunes or original songs by the artist/group, work with artists and help them to improve their songs, lyrics or arrangements.   - A song, most broadly, is a single (and often standalone) work of music that is typically intended to be sung by the human voice with distinct and fixed pitches and patterns using sound and silence and a variety of forms that often include the repetition of sections. Written words created specifically for music or for which music is specifically created, are called lyrics. If a pre-existing poem is set to composed music in classical music it is an art song. Songs that are sung on repeated pitches without distinct contours and patterns that rise and fall are called chants. Songs in a simple style that are learned informally are often referred to as folk songs. Songs that are composed for professional singers who sell their recordings or live shows to the mass market are called popular songs. These songs, which have broad appeal, are often composed by professional songwriters, composers and lyricists. Art songs are composed by trained classical composers for concert or recital performances. Songs are performed live and recorded on audio or video (or in some, cases, a song may be performed live and simultaneously recorded). Songs may also appear in plays, musical theatre, stage shows of any form, and within operas.  - A multi-instrumentalist is a musician who plays two or more musical instruments at a professional level. Multi-instrumentalists who play closely related instruments, a practice known as doubling are common in orchestra (e.g., flute players who double on piccolo and percussion players, who play snare drum, cymbals, bass drum, etc.), in jazz (e.g., saxophone players who double on clarinet or flute; or double bass players who also play electric bass); in music theatre pit orchestras (e.g., reed players who are required to play numerous reed instruments); and in other areas of classical music (e.g., church piano players are often expected to play the church's pipe organ or Hammond organ as well). Popular music composers and songwriters are often multi-instrumentalists. In pop and rock, it is more common than in classical or jazz for performers to be multi-instrumentalists on instruments that are not from the same family: it is common for pop and rock musicians to play both guitar and keyboards. Many bluegrass musicians are multi-instrumentalists. Some musicians' unions or associations specify a higher rate of pay for musicians who double on two or more instruments for a performance or recording.  - Guy Rupert Berryman (born 12 April 1978) is a Scottish musician, multi-instrumentalist and producer. He is the bass guitarist for the bands Coldplay and Apparatjik. Though Berryman is left-handed, he plays the bass right-handed.  - Ken Nelson ( born 6 February 1959 in Liverpool ) is an English record producer . After several years working on demos and independent artists , he achieved success with Gomez , and worldwide success with the first Coldplay recording . He has also worked with Badly Drawn Boy , Howling Bells , The Charlatans , Kings of Convenience , The Orange Lights , Ray LaMontagne , Snow Patrol , Paolo Nutini , and Deadbeat Darling . He has won three US Grammy awards , two Mercury Music Prizes , and was `` Music Week '' magazine 's ' Producer of the Year ' in 2003 . The Canadian singer / songwriter Alana Levandoski began recording her second album with producer Ken Nelson in Kelwood , Manitoba , Canada - at a local church in February 2008 . Final sessions for her album took place at Parr Street Studios in Liverpool , England in April and May 2008 .  - Coldplay are a British rock band formed in 1996 by lead vocalist and keyboardist Chris Martin and lead guitarist Jonny Buckland at University College London (UCL). After they formed under the name Pectoralz, Guy Berryman joined the group as bassist and they changed their name to Starfish. Will Champion joined as drummer and backing vocalist, completing the performing line-up. Creative Director Phil Harvey is often referred to as the official fifth member by the band. The band renamed themselves "Coldplay" in 1998, before recording and releasing three EPs: "Safety" in 1998, "Brothers & Sisters" as a single in 1999, and "The Blue Room" in the same year. "The Blue Room" was their first release on a major label, after signing to Parlophone.  - Trip hop is a subgenre of electronic music that originated in the early 1990s in the United Kingdom, especially Bristol. Deriving from later idioms of acid house, the term was first used by the British music media and press as a way to describe the more experimental variant of breakbeat emerging from the Bristol Sound scene, which contained influences of soul, funk and jazz. It has been described as "Europe's alternative choice in the second half of the '90s", and "a fusion of hip hop and electronica until neither genre is recognisable". Trip hop music fuses several styles and has much in common with other genres; it has several qualities similar to ambient music, and its drum-based breakdowns share characteristics with hip hop. It also contains elements of R&B, dub and house, as well as other electronic music. Trip hop can be highly experimental.  - Howling Bells are an indie rock band that formed in Sydney in 2004. The band obtained moderate popularity in the United Kingdom following the release of its 2006 self-titled debut album. The lineup consists of Juanita Stein (vocals, rhythm guitar), Glenn Moule (drums), Juanita's brother Joel Stein (lead guitar), and Gary Daines (bass guitar).  - Reggae is a music genre that originated in Jamaica in the late 1960s. The term also denotes the modern popular music of Jamaica and its diaspora. A 1968 single by Toots and the Maytals "Do the Reggay" was the first popular song to use the word "reggae," effectively naming the genre and introducing it to a global audience. While sometimes used in a broad sense to refer to most types of popular Jamaican dance music, the term "reggae" more properly denotes a particular music style that was strongly influenced by traditional mento as well as American jazz and rhythm and blues, especially the New Orleans R&B practiced by Fats Domino and Allen Toussaint, and evolved out of the earlier genres ska and rocksteady. Reggae usually relates news, social gossip, and political comment. Reggae spread into a commercialized jazz field, being known first as Rudie Blues, then Ska, later Blue Beat, and Rock Steady. It is instantly recognizable from the counterpoint between the bass and drum downbeat, and the offbeat rhythm section. The immediate origins of reggae were in ska and rock steady; from the latter, reggae took over the use of the bass as a percussion instrument.  - Damon Michael Gough (born 2 October 1969, in Dunstable, Bedfordshire), known by the stage name Badly Drawn Boy, is an English indie singer-songwriter and multi-instrumentalist.  - Music is an art form and cultural activity whose medium is sound and silence, which exist in time. The common elements of music are pitch (which governs melody and harmony), rhythm (and its associated concepts tempo, meter, and articulation), dynamics (loudness and softness), and the sonic qualities of timbre and texture (which are sometimes termed the "color" of a musical sound). Different styles or types of music may emphasize, de-emphasize or omit some of these elements. Music is performed with a vast range of instruments and vocal techniques ranging from singing to rapping; there are solely instrumental pieces, solely vocal pieces (such as songs without instrumental accompaniment) and pieces that combine singing and instruments. The word derives from Greek  ("mousike"; "art of the Muses"). In its most general form, the activities describing music as an art form include the production of works of music (songs, tunes, symphonies, and so on), the criticism of music, the study of the history of music, and the aesthetic examination of music. Ancient Greek and Indian philosophers defined music as tones ordered horizontally as melodies and vertically as harmonies. Common sayings such as "the harmony of the spheres" and "it is music to my ears" point to the notion that music is often ordered and pleasant to listen to. However, 20th-century composer John Cage thought that any sound can be music, saying, for example, "There is no noise, only sound."  - University College London (UCL) is a public research university in London, England, and a constituent college of the federal University of London. It is the largest postgraduate institution in the UK by enrollment and is regarded as one of the world's leading multidisciplinary research universities. Established in 1826 as London University by founders inspired by the radical ideas of Jeremy Bentham, UCL was the first university institution to be established in London, and the first in England to be entirely secular and to admit students regardless of their religion. UCL also makes the contested claims of being the third-oldest university in England and the first to admit women. In 1836 UCL became one of the two founding colleges of the University of London, which was granted a royal charter in the same year. It has grown through mergers, including with the Institute of Neurology (in 1997), the Royal Free Hospital Medical School (in 1998), the Eastman Dental Institute (in 1999), the School of Slavonic and East European Studies (in 1999), the School of Pharmacy (in 2012) and the Institute of Education (in 2014). UCL has its main campus in the Bloomsbury area of central London, with a number of institutes and teaching hospitals elsewhere in central London and a satellite campus in Doha, Qatar. UCL is organised into 11 constituent faculties, within which there are over 100 departments, institutes and research centres. UCL operates several culturally significant museums and manages collections in a wide range of fields, including the Petrie Museum of Egyptian Archaeology and the Grant Museum of Zoology and Comparative Anatomy, and administers the annual Orwell Prize in political writing. In 2015/16, UCL had around 38,300 students and 12,000 staff (including around 7,100 academic staff and 840 professors) and had a total income of £1.36 billion, of which £530 million was from research grants and contracts. UCL ranks highly in national and international league tables and its graduates rank among the most employable...  - Snow Patrol are a Northern Irish/Scottish rock band formed in 1993, consisting of Gary Lightbody (vocals, guitar), Nathan Connolly (guitar, backing vocals), Paul Wilson (bass guitar, backing vocals), Jonny Quinn (drums), and Johnny McDaid (piano, guitar, backing vocals). Initially an indie rock band, the group rose to prominence in the early-mid 2000s as part of the post-Britpop movement.  - Raymond "Ray" Charles Jack LaMontagne (born June 18, 1973) is an American singer-songwriter. LaMontagne has released six studio albums, "Trouble", "Till the Sun Turns Black", "Gossip in the Grain", "God Willin' & the Creek Don't Rise", "Supernova" and "Ouroboros". He was born in New Hampshire and was inspired to create music after hearing an album by Stephen Stills. Critics have compared LaMontagne's music to that of Otis Redding, The Band, Van Morrison, Nick Drake and Tim Buckley.  - Deadbeat Darling is a four-piece rock band which formed in New York City in 2006. The band's sound is a blend of several musical genres, including rock, surf, reggae, dub and trip hop. They have released one EP and two full-length albums. Their latest effort, "The Angel's Share", recorded with Grammy award winning producer Ken Nelson, was released by Speahavoc Records on April 2, 2012.    Given the information above, choose from the list below the object entity that exhibits the relation 'instrument' with the subject 'ken nelson '.  Choices: - bass  - bass drum  - drum  - flute  - guitar  - human voice  - percussion instrument  - piano  - saxophone  - singing  - snare drum  - triangle
The answer to this question is:
guitar