Does Carl Barât use an instrument that Ian Astbury does not?
yes
Carl Barât
Carlos Ashley Raphael Barât (born 6 June 1978) is a British musician, best known for being the co-frontman with Peter Doherty of the garage rock band The Libertines.
 He was the frontman and lead guitarist of Dirty Pretty Things, and in 2010 debuted a solo album.
 In 2014 he announced the creation of his new band, The Jackals.
Ian Astbury
Ian Robert Astbury (born 14 May 1962) is an English singer and songwriter.
 He is best known as a founding member and the lead vocalist for the rock band The Cult.
Carl Barât (album)
Carl Barât is the debut solo album by Libertines co-frontman Carl Barât.
 It was released on 4 October 2010 in the UK.
 The album was mastered in New York City and was the first album released through his own self-funded record label Arcady, but distributed through PIAS Recordings.
 The first single to be released from the album was "Run with the Boys". Dirty Pretty Things (band)
Dirty Pretty Things were an English band fronted by Carl Barât, a member of The Libertines.
 The formation of the band was announced in September 2005, after a dispute between Barât and Pete Doherty led to the breakup of The Libertines in 2004.
 Barât had worked with Vertigo Records and had previously revealed that his new project was with the label.
 Didz Hammond announced he was leaving the Cooper Temple Clause to join the band alongside Libertines drummer Gary Powell and guitarist Anthony Rossomando, who had filled in for Doherty following his departure from The Libertines.
 They played their first shows in October 2005 in Italy and Paris, France.
 They announced their split on 1 October 2008 and played their final shows during November. The Cult
The Cult are a British rock band formed in 1983.
 Before settling on their current name in January 1984, the band performed under the name Death Cult, which was an evolution of the name of lead singer Ian Astbury's previous band Southern Death Cult.
 They gained a dedicated following in the UK in the mid-1980s as a post-punk/gothic rock band, with singles such as "She Sells Sanctuary", before breaking mainstream in the United States in the late 1980s as a hard rock band with singles such as "Love Removal Machine" and "Fire Woman".
 According to music critic Stephen Thomas Erlewine, the band fuse a "heavy metal revivalist" sound with the "pseudo-mysticism ... of The Doors [and] the guitar-orchestrations of Led Zeppelin ... while adding touches of post-punk goth rock".
 Since the initial formation of Southern Death Cult in Bradford in 1981, the band have had various line-ups; the longest-serving members are Astbury and guitarist Billy Duffy, the band's two songwriters. Holy Barbarians (band)
Holy Barbarians was a short-lived rock band formed during 1996, after English frontman Ian Astbury left his band The Cult.
 Astbury was joined with three musicians from the United States, guitarist Patrick Sugg along with brothers Matt and Scott Garrett.
 Together the band recorded one album, "Cream". The Chavs
The Chavs are a Rock supergroup formed in 2004, by former Libertines and Dirty Pretty Things guitarist Carl Barât.
 Alongside Barât in the band are Tim Burgess of The Charlatans, Primal Scream keyboardist Martin Duffy and drummer Andy Burrows from Razorlight.
 They made their live debut at Chatham's Tap'n'Tin, in December 2004, where the set included the Libertines songs "Death On the Stairs", "France" and "Road To Ruin", the Charlatans' "A Man Needs To Be Told" and "North Country Boy", Burgess' solo song "I Believe In The Spirit" and festive songs including a cover of "Fairytale of New York" by The Pogues. BXI (EP)
BXI is a collaborative EP by the Japanese band Boris and The Cult lead vocalist Ian Astbury.
 The EP was released in September 2010 in CD, black, blue and pink vinyl, and digital formats through Southern Lord Records.
 Boris and Ian Astbury had performed live together, including on May 30, 2010, at the Sydney Opera House and on September 7, 2010, at the Brooklyn Masonic Temple in Brooklyn, New York. High Octane Cult
High Octane Cult is a United States and Japan greatest hits compilation featuring every single The Cult had released at the time, with the additional "Beauty's on the Street" and "In the Clouds".
 It was released by The Cult's then record company Beggars Banquet Records without The Cult's participation.
 In the years since its release, singer Ian Astbury and guitarist Billy Duffy have occasionally been vocal about their dislike of this release, with Astbury calling it "sad" on their official website in 2006.
 Beggars Banquet had planned on using handmade drawings by Ian Astbury for the album's artwork, but when the drawings were lost, the record company subsequently replaced it with less than stellar car photos, and the band photo from The Cult's "Sonic Temple" record was used in the jacket sleeve, along with a short bio about the band, which guitarist Billy Duffy publicly expressed his disapproval about. A Gathering of the Tribes
A Gathering of the Tribes was a two-day music and culture festival organized by Ian Astbury and promoter Bill Graham, held in California in October 1990.
 It is considered the precursor to the Lollapalooza touring festivals of the 1990s, an opinion shared by Astbury himself.
 The festival was held at the Shoreline Amphitheatre in Mountain View on October 6 and the Pacific Amphitheatre in Costa Mesa on October 7.
 The event was intended to raise money for and awareness of Native-American-related causes.
 A performance by the American Indian Dance Theatre preceded the festival each day.
 The concert grounds also hosted tents for Act Up, Amnesty International, Greenpeace, Rock the Vote, and local animal rights organizations.