Question: A Perfect Circle and Wolf Alice both specialize in what type of music?

full_context: Document 1: Wolf Alice: Wolf Alice are a four-piece alternative rock band from North London, formed initially as a two-person band in 2010. Its members since 2012 are Ellie Rowsell (vocals, guitar), Joff Oddie (guitars, vocals), Theo Ellis (bass), and Joel Amey (drums, vocals).
Document 2: Maynard James Keenan discography: Maynard James Keenan is best known as the lead singer of rock bands Tool, with whom he has recorded four studio albums and earned two Grammy Awards, and A Perfect Circle, with whom he has recorded three studio albums. Puscifer, a side project created by Keenan, has released three studio albums.
Document 3: Arctic Monkeys: Arctic Monkeys are an English rock band formed in 2002 in High Green, a suburb of Sheffield. The band consists of Alex Turner (lead vocals, rhythm/lead guitar), Matt Helders (drums, vocals), Jamie Cook (lead/rhythm guitar) and Nick O'Malley (bass, backing vocals). Former band member Andy Nicholson (bass guitar, backing vocals) left the band in 2006 shortly after their debut album was released.
Document 4: Wolfmother: Wolfmother are an Australian hard rock band from Sydney, New South Wales. Formed in 2000 by vocalist and guitarist Andrew Stockdale, bassist and keyboardist Chris Ross and drummer Myles Heskett, the group currently includes Stockdale, bassist and keyboardist Ian Peres and drummer Hamish Rosser. Wolfmother released their self-titled debut album "Wolfmother" in Australia in 2005 and internationally in 2006. The album reached number 3 on the Australian Albums Chart and the top 40 in the US and the UK, and has to date sold over 1.5 million copies worldwide.
Document 5: A Perfect Circle Live: Featuring Stone and Echo: A Perfect Circle Live: Featuring Stone and Echo is a live box set by American rock supergroup, A Perfect Circle. It was released via the band's own label, A Perfect Circle Entertainment, on November 26, 2013, a week after the release of the band's greatest hits album, "Three Sixty".
Document 6: Puscifer: is an American band formed in Los Angeles by Maynard James Keenan, known as the lead singer of the bands Tool and A Perfect Circle. As Keenan is the only permanent member, he considers the project to be his "creative subconscious." In light of this, Puscifer is considered a pseudonym for his solo work.
Document 7: Blush (Wolf Alice EP): Blush is the debut EP by British alternative rock band Wolf Alice, produced by Austen Jux-Chandler. It was released on 7 October 2013, on limited edition 10" vinyl. "She" is the first song to come from the EP, which was uploaded to Wolf Alice's Soundcloud page.
Document 8: List of Wolfmother members: Wolfmother are an Australian hard rock band from Sydney, New South Wales. Formed in 2000, the band originally included vocalist and guitarist Andrew Stockdale, bassist and keyboardist Chris Ross, and drummer Myles Heskett, the three of whom had been jamming together for a number of years before the band's first public performance in 2004. The group released their self-titled debut studio album "Wolfmother" in Australia in 2005, followed by international releases the following year, the songwriting for which was credited equally to all three band members. The founding lineup remained until August 2008, when Ross and Heskett left the band due to "irreconcilable personal and musical differences".
Document 9: List of songs recorded by Wolfmother: Wolfmother are an Australian hard rock band formed in Sydney, New South Wales in 2000. Originally a trio featuring vocalist and guitarist Andrew Stockdale, bassist and keyboardist Chris Ross, and drummer Myles Heskett, the group released their self-titled debut album in Australia in 2005, with all 12 tracks credited equally to all three band members. Four songs – "Dimension", "Woman", "White Unicorn" and "Apple Tree" – had originally been released on the band's self-titled debut EP the previous year. When "Wolfmother" was released internationally in 2006, it also featured "Love Train". In May 2007, the band contributed "Pleased to Meet You" to the "Spider-Man 3" soundtrack.
Document 10: The xx: The xx are an English indie pop band formed in 2005 in Wandsworth, London, and currently consists of Oliver Sim (bass, vocals), Romy Madley Croft (guitar, vocals) and Jamie xx (beats, MPC, record production). They are best known for their distinct and unique minimalistic sound that blends the likes of indie pop, indie electronic, dream pop and electronic rock and the dual vocalist setup of both Croft and Sim.
Document 11: Keep Telling Myself It's Alright: Keep Telling Myself It's Alright is the debut studio album by American rock band Ashes Divide, the solo-project by A Perfect Circle guitarist Billy Howerdel. While efforts towards a Howerdel solo album were started even back in his time in A Perfect Circle during touring in support of their 2003 album "Thirteenth Step", commitments to A Perfect Circle and other projects, along with some difficult recording sessions, pushed the album's release out to April 8, 2008. Its first single, "The Stone," entered radio circulation in January of that year.
Document 12: Foals (band): Foals are an English indie rock band from Oxford, England formed in 2005, consisting of lead vocalist and lead guitarist Yannis Philippakis, drummer and percussionist Jack Bevan, rhythm guitarist Jimmy Smith, bassist Walter Gervers, and keyboardist Edwin Congreave. Since the band's formation, their line-up has remained constant, except for the departure of former lead singer Andrew Mears.
Document 13: A Perfect Circle: A Perfect Circle is an American rock supergroup formed in 1999 by guitarist Billy Howerdel and Tool vocalist Maynard James Keenan. A Perfect Circle has released three albums: their debut "Mer de Noms" in 2000, a follow up, "Thirteenth Step" in 2003, and an album of radically re-worked cover songs titled "Emotive" in 2004. Shortly after "Emotive"' s release, the band went into hiatus while Keenan returned to Tool and starting up solo work in the form of the band Puscifer, and Howerdel releasing a solo album, "Keep Telling Myself It's Alright", under the moniker Ashes Divide. Band activity was sporadic in the coming years; the band reformed in 2010, and played live shows on and off between 2010 and 2013, but fell into inactivity after the release of their greatest hits album, "Three Sixty", and a live album box set, "" in late 2013. However, in 2017, the band returned to touring and announced plans to record and release a fourth studio album under a new record label, BMG Rights Management, between late 2017 and early 2018.
Document 14: Ashes Divide: Ashes Divide is the name used for the solo project of American rock musician Billy Howerdel, guitarist of the alternative rock band A Perfect Circle, where he is the primary songwriter, musician, producer, and vocalist. The project's debut album, "Keep Telling Myself It's Alright", was released in 2008. Howerdel formed a live band and toured in support of the album through the rest of the year, but the project fell to the wayside after A Perfect Circle reformed and toured in 2010 and 2011. Howerdel would work on both projects for a while until late 2012, where he announced his primary focus is completing the second album, of which he hoped to enter the mixing phase in January or February 2013.
Document 15: A Perfect Circle discography: The discography of American alternative rock supergroup A Perfect Circle consists of three studio albums, two compilation albums, one extended play, one video album, nine singles, one promotional single and ten music videos. A Perfect Circle is the brainchild of Billy Howerdel. After hearing demos of Howerdel's music, Maynard James Keenan, the lead singer of Tool, offered his services as vocalist. Howerdel agreed, and the band formed in 1999. They were then joined by bassist/violinist Paz Lenchantin, guitarist Troy Van Leeuwen, formerly of Failure, and drummer Tim Alexander, formerly of Primus. Soon after entering the studio to record their first album, Alexander was replaced by Josh Freese of The Vandals. "Mer de Noms" was released in May 2000, selling 188,000 copies its debut week. The band embarked on a number of headlining tours all over the world to promote the album which was certified gold by the Recording Industry Association of America (RIAA) one month after its release, and platinum just four months later.
ground_truth: rock