Question: Nine Black Alps and Ned's Atomic Dustbin, are of which genre?

full_context: Document 1: Amplifier (band): Amplifier are an English rock band originating from Manchester. The band has released six albums and four EPs since its inception in 1999. Their music has been described as "Soundgarden, Tool, Black Sabbath, Oceansize and Pink Floyd taking copious amounts of mind-altering substances and venturing on a trip through time and space (to another dimension), and back again." Their music is characterised by guitarist Sel Balamir's effect pedals, Matt Brobin's complex drumming, extended heavy sections, atmospheric compositions and philosophical lyrics.
Document 2: Mansun: Mansun were an English alternative rock band formed in Chester in 1995. The band comprised vocalist/rhythm guitarist Paul Draper, bassist Stove King, lead guitarist/backing vocalist Dominic Chad, and drummer Andie Rathbone.
Document 3: Bite (Ned's Atomic Dustbin album): Bite is a compilation album by the English rock band Ned's Atomic Dustbin. The album consists of early singles, along with two previously unreleased tracks ("She's Gone" and "The Old New 'Un"). Released by the band's former label, Chapter 22, without input or knowledge from the band, while they were putting the final touches on what was to be their debut album "God Fodder".
Document 4: Are You Normal?: Are You Normal? is Ned's Atomic Dustbin's second album, released on 3 November 1992. It features the band's biggest American hit, "Not Sleeping Around", which hit the top of "Billboard"'s Modern Rock Tracks chart.
Document 5: Ned's Atomic Dustbin: Ned's Atomic Dustbin are an English rock band formed in Stourbridge in West Midlands in November 1987. The band took their name from an episode of "The Goon Show". The band are unusual for using two bass players in their lineup: Alex Griffin plays melody lines high up on one bass, and Mat Cheslin plays the regular bass lines on the other. This gives the band a tense and highly driven sub-hardcore sound featuring distorted effects-laden guitar and energetic drums.
Document 6: 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 7: Paper Crown: Paper Crown is the second solo album by Nine Black Alps front-man Sam Forrest, released December 28, 2009 on Desert Mine Music.
Document 8: Sirens (Nine Black Alps album): Sirens is the fourth studio album by English alternative rock band Nine Black Alps, released on October 8, 2012 on Brew Records. The album is the first to feature bassist Karl Astbury, following the departure of Martin Cohen in 2011.
Document 9: The Music: The Music were an English alternative rock band, formed in Kippax, Leeds in 1999. Comprising Robert Harvey (vocals, guitar), Adam Nutter (lead guitar), Stuart Coleman (bass) and Phil Jordan (drums), the band came to prominence with the release of their debut album, "The Music", in 2002. The band released two further studio albums, "Welcome to the North" (2004) and "Strength in Numbers" (2008), before parting ways in 2011.
Document 10: Brainbloodvolume: Brainbloodvolume is the third and final album from Ned's Atomic Dustbin with their original line-up. It was released in the United States on 21 March 1995 but did not appear in the United Kingdom until July of that year. It received a memorable review by Neil Kulkarni in "Melody Maker", which consisted entirely of a rant against students and did not discuss the actual album.
Document 11: Locked Out from the Inside: Locked out from the Inside is the third studio album by Manchester-based alternative rock band Nine Black Alps, released on October 5, 2009. The album was released digitally with the purchase of tour tickets on August 6, 2009. The album was released on the band's own Lost House Records label.
Document 12: Mogwai: Mogwai ( ) are a Scottish post-rock band, formed in 1995 in Glasgow. The band consists of Stuart Braithwaite (guitar, vocals), Barry Burns (guitar, piano, synthesizer, vocals), Dominic Aitchison (bass guitar), and Martin Bulloch (drums). The band typically compose lengthy guitar-based instrumental pieces that feature dynamic contrast, melodic bass guitar lines, and heavy use of distortion and effects. The band were for several years signed to Glasgow label Chemikal Underground, and have been distributed by different labels such as Matador in the US and Play It Again Sam in the UK, but now use their own label Rock Action Records in the UK, and Sub Pop in North America. The band were frequently championed by John Peel from their early days, and recorded seven Peel Sessions between 1996 and 2004. Peel also recorded a brief introduction for the compilation "".
Document 13: Bad News (band): Bad News were an English spoof heavy metal band, created for the Channel 4 television series "The Comic Strip Presents...". Its members were Vim Fuego (aka Alan Metcalfe), vocals and lead guitar (played by Ade Edmondson); Den Dennis, rhythm guitar (Nigel Planer); Colin Grigson, bass (Rik Mayall); and Spider "Eight-Legs" Webb, drums (Peter Richardson).
Document 14: God Fodder: God Fodder is the first full-length album by British rock band Ned's Atomic Dustbin. It was released in 1991. After creating their own Sony Records imprint in 1990 after a success of independent singles, the band recorded "God Fodder" in late 1990 and early 1991 in London. The album takes large influence from grebo, shoegaze, noise pop and dance music, and is characterized by its noisy guitars, complex drum beats and usage of two bass players, with Matt Cheslin playing regular bass lines and Alex Griffin playing harmonic bass lines. Lyrically, the album features communal efforts written by all the band.
Document 15: Nine Black Alps: Nine Black Alps are an English alternative rock band, formed in 2003 in Manchester. The band consists of vocalist-guitarist Sam Forrest, guitarist David Jones, drummer James Galley and bassist Karl Astbury.
ground_truth: rock