Question: What role have both Matthew Tuck and Frank Iero performed in musical groups?

full_context: Document 1: Scott Ian: Scott Ian (born Scott Ian Rosenfeld; December 31, 1963) is an American musician, best known as the rhythm guitarist, backing and additional lead vocalist, and the only remaining original founding member of the thrash metal band Anthrax. He also writes the lyrics on all their albums. Ian is the guitarist and a founding member of the crossover thrash band Stormtroopers of Death. He has hosted "The Rock Show" on VH1 and has appeared on VH1's "I Love the..." series, "" and ""Supergroup" (TV series)". Ian is also the rhythm guitarist for the metal band The Damned Things.
Document 2: Matt Thorr: Matt Thorne, also known as Matt Thorr, is a bassist who has played in the glam metal band Ratt, Rough Cutt, and Jailhouse. He co-wrote the song "Back For More" with Stephen Pearcy on Ratt's album "Out of the Cellar". He currently owns MT Studios for BlueThumbProductions in Burbank, California where he has produced, engineered and mixed albums for artists such as "The Eels" and "Trapt".
Document 3: Gerard Way: Gerard Arthur Way (born April 9, 1977) is an American singer, songwriter, musician, and comic book writer who was the lead vocalist and co-founder of the rock band My Chemical Romance from its formation in September 2001 until its split in March 2013. His debut solo album "Hesitant Alien" was released on September 30, 2014. He also wrote the comic mini-series "The True Lives of the Fabulous Killjoys" and the Eisner Award-winning comic book "The Umbrella Academy".
Document 4: Parachutes (Frank Iero and the Patience album): Parachutes is the second album by guitarist and singer-songwriter Frank Iero and the follow up to 2014's "Stomachaches". It was released on October 28, 2016 via Vagrant Records with exclusive license to Hassle Records for the UK release.
Document 5: Matt Willis: Mathew James "Matt" Willis (born 8 May 1983), also previously known as Mattie Jay, is an English singer-songwriter, television presenter and actor, best known as the bassist and one of the vocalists of the pop punk band, Busted. Willis released his debut solo album "Don't Let It Go to Waste" on 20 November 2006, which included three top 20 singles.
Document 6: Frank Iero and the Patience: Frank Iero and the Patience is an American rock band from Belleville, New Jersey. Their debut album, "Stomachaches", was released on August 25, 2014. Their second album "Parachutes" was released on October 27, 2016 with the promotional singles "I'm A Mess", "Remedy", and "Oceans". Their current lineup consists of Frank Iero, Evan Nestor, Matt Olsson, and Alex Grippo. Steve Evetts is credited with writing and recording the bass tracks on "Parachutes".
Document 7: Matthew Tuck: Matthew "Matt" Tuck (born 20 January 1980) is a Welsh musician. He is the lead vocalist and rhythm guitarist in the Welsh heavy metal band Bullet for My Valentine. He and the other 3 members of his old band founded "Jeff Killed John" in 1998, but after bassist Nick Crandle left in 2003, the band was renamed to Bullet for My Valentine. He is also a singer and guitarist in the supergroup AxeWound, which was formed in 2012. He also plays piano, drums, keyboard, and harmonica. He did a collaboration with Max Cavalera (Soulfly, Cavalera Conspiracy, ex-Sepultura) and with Apocalyptica in the song "Repressed".
Document 8: Leathermouth: Leathermouth (often typeset as LeATHERMØUTH) was an American hardcore punk band led by Frank Iero. The band formed in 2007, and in January 2009 released their first album "XO".
Document 9: Bullet for My Valentine: Bullet for My Valentine, often abbreviated as BFMV or B4MV, are a Welsh heavy metal band from Bridgend, formed in 1998. The band is composed of Matthew Tuck (lead vocals, rhythm guitar), Michael Paget (lead guitar, backing vocals), Michael Thomas (drums) and Jamie Mathias (bass guitar). Former members include Nick Crandle and Jason James; both were on bass. They were formed under the name Jeff Killed John and started their music career by covering songs by Metallica and Nirvana. Jeff Killed John recorded six songs which were not released; two of these tracks were reworked later in their career as Bullet for My Valentine. Financial difficulties dictated the name change, which was followed by a change in music direction. In 2002, the band secured a five-album deal with Sony BMG. The band has stated that their music is influenced by classic metal acts such as Metallica, Iron Maiden and Slayer. The band is part of the Cardiff music scene.
Document 10: Matt Nasir: Matt Nasir is a multi-instrumental musician based in London, England. He currently plays Keyboards in Frank Turner's band The Sleeping Souls and is a member of the London-based rock band 'The Pressure Room'. He has also previously played in Andy Yorke's live band and is known as the 'Archivist' for his remixing work. Frank Turner and The Sleeping Souls headlined Wembley Arena in April 2012 and played at the Opening Ceremony of the 2012 Olympic Games in London. Matt also features as the guitarist in a side-project, Möngöl Hörde, with Frank Turner and Frank's former Million Dead band mate, Ben Dawson. Matt plays a baritone guitar in Möngöl Hörde.
Document 11: XO (Leathermouth album): XO (often typeset as XØ) is the debut album released by Leathermouth, My Chemical Romance's rhythm guitarist Frank Iero's hardcore punk side project. Although the album did not chart on the "Billboard" 200, it did reach No. 21 on the Top Heatseekers chart.
Document 12: Jeff Killed John (EP): Jeff Killed John is the last EP by Welsh nu metal band Jeff Killed John, before changing their name to Bullet for My Valentine. This EP also marks the last recorded material with bassist Nick Crandle, before Jason James replaced him. Many song elements from this EP would be reworked into later tracks for Bullet for My Valentine music: "Routine Unhappiness" contains riff elements that would later become "Tears Don't Fall," with lyrical content that would appear on "10 Years Today;" "Nation2Nation" would eventually become the bonus track "Turn to Despair" on the Japanese edition of "Hand of Blood;" and "All These Things I Hate (Revolve Around Me)" is an early demo of the song of the same name that would eventually appear on Bullet for My Valentine's debut album "The Poison."
Document 13: Frank Hannon: Frank Hannon (born October 3, 1966 in Sacramento, California), is best known as the guitarist, songwriter and a co-founder of the multi-platinum band Tesla, and is now established as a solo singer/songwriter with his album Gypsy Highway. Drawing on his early childhood influences of American Folk artists such as Bob Dylan, John Denver, and Willie Nelson, Frank Hannon has showcased his lyrical, vocal, and "acoustic" storytelling song writing abilities on the self produced album. Apart from recent Tesla concerts, Frank Hannon has been performing solo "acoustic" shows, one in particular was the KGGO "Summer Jam" in Des Moines Iowa where he performed throughout the day in between artist such as John Waite, 38 special, and BTO in front of 10,000 fans singing by himself with an acoustic guitar, and recently performing with Aaron Lewis who is also known for such solo acoustic performances. Frank has recently formed the independent label RedHawk Records.
Document 14: Max Cavalera: Massimiliano Antonio "Max" Cavalera (] , born August 4, 1969) is a Brazilian singer, guitarist, and songwriter who currently plays in heavy metal bands Soulfly, Cavalera Conspiracy, and Killer Be Killed. In 1984, he co-founded the acclaimed heavy metal band Sepultura with his brother Igor Cavalera and was the band's lead singer and rhythm guitarist until he left in 1996. Cavalera was also involved in a short-lived side project called Nailbomb.
Document 15: Frank Iero: Frank Anthony Iero, Jr. (born October 31, 1981) is an American musician who was the rhythm guitarist and backup vocalist of the rock band My Chemical Romance and post-hardcore band Leathermouth. He has a solo punk rock project titled Frank Iero and the Patience. He released an album under the previous name of frnkiero andthe cellabration titled "Stomachaches" which was released on August 26, 2014. The first single off the album, called "Weighted", premiered on BBC Radio One on July 8, 2014.
ground_truth: rhythm guitarist