Question: While the Editors are an English rock band, the Squirrel Nut Zippers are what type of band?

full_context: Document 1: 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 2: 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 3: Ken Coomer: Ken Coomer was the last drummer for the band Uncle Tupelo as well as the drummer for Chicago-based band Wilco until "Yankee Hotel Foxtrot". He was the drummer and co-founder of the Nashville-based band, Clockhammer, in the late 1980s/early 1990s, as well as Buzzkill, during that same time, and he continues to play on various projects.
Document 4: Tom Smith (musician): Thomas Michael Henry Smith (born 29 April 1981) is an English musician. He is the lead singer, lyricist, keyboardist and rhythm guitarist for the Birmingham-based indie rock band Editors.
Document 5: Jimbo Mathus: James H. Mathis, Jr. (born August 1967), known as Jimbo Mathus, is an American singer-songwriter and guitarist, best known for his work with the swing revival band Squirrel Nut Zippers.
Document 6: 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 7: Dave Matthews Band: Dave Matthews Band, also known by the initialism DMB, is an American rock band that was formed in Charlottesville, Virginia in 1991. The founding members were singer-songwriter and guitarist Dave Matthews, bassist Stefan Lessard, drummer and backing vocalist Carter Beauford, and saxophonist LeRoi Moore. Boyd Tinsley joined the band as a violinist soon after the band was formed. Moore died suddenly in August 2008 due to complications from injuries sustained in an ATV accident. Grammy Award winner Jeff Coffin (of Béla Fleck and the Flecktones) has since filled Moore's spot as the band's saxophonist; trumpeter Rashawn Ross and guitarist Tim Reynolds have also become full-time members of the band. Other past members include keyboardists Peter Griesar and Butch Taylor. The group's 2009 album "Big Whiskey & the GrooGrux King", their first after Moore's death, debuted at number one on the "Billboard" 200, earning them their fifth consecutive number-one debut; their most recent album, 2012's "Away from the World", debuted at number one on the Billboard chart, making Dave Matthews Band the first group to have six consecutive studio albums debut in the top spot (Metallica would be the second to do so in 2016). As of 2010, the Dave Matthews Band has sold over 50 million records worldwide.
Document 8: Bedlam Ballroom: Bedlam Ballroom is the fifth studio album by the swing revival band Squirrel Nut Zippers, released in 2000. Most editions of the CD case have a lenticular cover. The cover artwork was created by artist Michael Doret.
Document 9: Squirrel Nut Zippers: The Squirrel Nut Zippers is an American swing band formed in 1993 in Chapel Hill, North Carolina, by James "Jimbo" Mathus (vocals and guitar), Tom Maxwell (vocals and guitar), Katharine Whalen (vocals, banjo, ukulele), Chris Phillips (drums), Don Raleigh (bass guitar), and Ken Mosher.
Document 10: Radiohead: Radiohead are an English rock band from Abingdon, Oxfordshire, formed in 1985. The band consists of Thom Yorke (lead vocals, guitar, piano, keyboards), Jonny Greenwood (lead guitar, keyboards, other instruments), Ed O'Brien (guitar, backing vocals), Colin Greenwood (bass), and Phil Selway (drums, percussion, backing vocals). They have worked with producer Nigel Godrich and cover artist Stanley Donwood since 1994.
Document 11: Tom Maxwell (singer): Thomas Edward Maxwell (born September 19, 1965) is an American songwriter, musician, vocalist, and writer. Most notably Maxwell is the former lead singer of the swing revival band Squirrel Nut Zippers. He wrote the single "Hell" from the 1996 certified platinum album "Hot".
Document 12: Editors (band): Editors are an English rock band, formed in 2002 in Birmingham. Previously known as Pilot, The Pride and Snowfield, the band currently consists of Tom Smith (lead vocals, guitar, piano), Russell Leetch (bass guitar, synthesizer, backing vocals), Ed Lay (drums, percussion, backing vocals), Justin Lockey (lead guitar), and Elliott Williams (keys, synthesizers, guitars, and backing vocals).
Document 13: Kaiser Chiefs: Kaiser Chiefs are an English indie rock band from Leeds who formed in 2000 as Parva, releasing one studio album, "22", in 2003, before renaming and establishing themselves in their current name that same year. Since their formation the band consists of lead vocalist Ricky Wilson, guitarist Andrew "Whitey" White, bassist Simon Rix, keyboardist and occasional drummer Nick "Peanut" Baines and since 2013 drummer Vijay Mistry, who replaced founding drummer Nick Hodgson who left the band in late 2012.
Document 14: Christmas Caravan: Christmas Caravan is a Christmas album by the swing revival band Squirrel Nut Zippers that was released in 1998 by Mammoth Records.
Document 15: Roasted Right: Roasted Right is an EP by the swing revival band Squirrel Nut Zippers that was released in 1997. Unlike other albums by the Zippers, brass and woodwinds were replaced by guitars and the blues.
ground_truth: American swing band