Question: This former member of Down was also a member of a group that started as what kind of band?

Context paragraphs:
The Security Project: The Security Project is a cover band that started performing in 2012 in recognition of the 25th anniversary of the release of the album "Security" by Peter Gabriel.  The band performs Gabriel's early progressive repertoire, generally taking material from his first four albums. .  Notable members of the band include drummer Jerry Marotta (who played on those first four albums and toured with Gabriel for 10 years), Warr guitarist Trey Gunn (former member of King Crimson) and guitarist Michael Cozzi (former member of Shriekback).  Since 2012 they have toured a couple of times, in the US and Canada.

Rex Brown: Rex Robert Brown (born July 27, 1964) is an American musician and author, who is best known as having been the longtime bassist for the Grammy-nominated, platinum-selling, now defunct band Pantera (1982–2003).  He is a former member of Down (2001–2011), and is currently the bassist for the band Kill Devil Hill.  He released his debut solo album ˝Smoke On This˝ on July 28th, 2017.  For the first time in Brown's career, the work features him not only as a bassist but also as lead vocalist and guitarist.

Matt Sorum: Matthew William "Matt" Sorum (born November 19, 1960) is an American drummer and percussionist.  He is best known as both a former member of the hard rock band Guns N' Roses, with whom he recorded three studio albums, and as a member of the supergroup Velvet Revolver.  Sorum is currently a member of the touring project, Kings of Chaos, and is a former member of both The Cult and Y Kant Tori Read.  Sorum was also a member of Guns N' Roses side-projects, Slash's Snakepit and Neurotic Outsiders, and released a solo album, "Hollywood Zen", in 2004.

Moxy V: Moxy V, or Moxy 5, is the fifth album by the Canadian rock band Moxy, Three of the original members of Moxy reunited when Bill Wade (just before his death from cancer on July 27, 2001) got Moxy back into the studio (Recorded at Wade's home studio and self-produced) in 1999, with Earl Johnson and Buddy Caine after a 20-year gap, to produce Moxy's fifth studio album appropriately titled "Moxy V".  With a new singer Brian Maxim (former member of "Stumbling Blind"), who is also considered a true member of Moxy, as Brian sung back-ups with Moxy on tour back in the 1970s and worked with Buddy Caine in the band "Voodoo".  In 2001 a special release with a new CD cover unique for the European fans was released it includes one bonus track, "Time To Move On" that was recorded live at the El Mocambo in Toronto on January 12, 2001.  In 2002 the album was released again with the original cover in North America with the addition of two live tracks "Still I Wonder" and "Young Legs" the tracks were originally to be included on the live album Raw also released in 2002.  Also unique to the 2002 North America release, is the inclusion of an edited version of "Yucatan Man" The 2002 Bullseye Records version of the album features a nice testimonial from Canadian “Metal Queen” Lee Aaron about drummer Bill Wade, who played on LEE's debut album called "The Lee Aaron Project".  "I first worked with Billy when I was about 19.  I was young and very green in the industry — Bill was about 33 at that time — and I remember having a bad couple of weeks.  My expectations of the industry were pretty grandiose at that stage: I was a kid with stars in my eyes.  Bill took me aside one night and, like a kind, loving father, said I had to remember to be grateful and that I had to remember every day that I was lucky to be in this business and working.  Throughout the course of my career, especially at times when I felt like hanging up my microphone, I always remember those words he imparted to me.  It's sad to think that such a cool and talented person can be taken at such a young age."

Fragile Vastness: Fragile Vastness is a Greek band, formed in February 2000 by Babis Tsolakis (drums, former member of Piranha and Retrospect), Vangelis Yalamas (bass guitar, former member of Airged Lahm and Retrospect), Evi Katsamatsa (piano/keyboards, a piano teacher), Alex Flouros (guitars, former member of Sound Of Silence) and Zacharias Tsoumos (vocals, tenor at the National Greek Opera).  Their musical influence covers a wide spectrum of different kinds of music, like jazz, Latin and ethnic music, but they can be categorized as a progressive rock/progressive metal band.  After signing a contract with the record company Sleaszy Rider, they release their debut album called "Excerpts...", including the video clip for the song “Weep No More”, on the November 19, 2002.  In the beginning of 2004, Zacharias Tsoumos leaves the band due to obligations and is replaced by George Ikosipentakis.  With this synthesis, their second album "A Tribute To Life" was released in 2005.  Fragile Vastness has been a support band for bands like Sentenced, Pain of Salvation, Rage, Primordial, Deadsoul Tribe, Fates Warning and Helloween

Les Identitaires: The Bloc Identitaire is a nativist movement originated from France and present in several states on the European continent.  It has been described as right wing and far right.  It was founded in 2003 by some former members of Unité Radicale and several other nationalist sympathisers, including Fabrice Robert, former Unité Radicale member, former elected representative of the National Front (FN) and also former member of the National Republican Movement (MNR), and Guillaume Luyt, former member of the monarchist Action française, former Unité Radicale member, former director of the youth organisation of the FN, National Front Youth (FNJ).  Luyt claims inspiration by Guillaume Faye's works in the Nouvelle Droite movement.

Miyuki Watanabe: Miyuki Watanabe (渡辺 美優紀 , Watanabe Miyuki , born 19 September 1993 in Nara Prefecture) is a former member of the Japanese idol girl groups NMB48, AKB48 and SKE48.  She is a former member of NMB48's Team BII, and a former member of SKE48's Team S.  She was also on AKB48 Team B.

Georgios Karatzaferis: Georgios Karatzaferis (Greek: Γεώργιος Καρατζαφέρης ; born August 11, 1947) is a Greek politician, a former member of the Hellenic Parliament and the president of the Popular Orthodox Rally.  Previously, Karatzaferis was a member of parliament of the liberal-conservative New Democracy party.  He is a former Member of the European Parliament and former vice-president of the Independence and Democracy group.  His party's views, ideas, and electoral campaigns are often broadcast and promoted by the relatively minor private Greek TV channel TeleAsty (former Telecity), which he founded and owns.  The party's ideas are also disseminated in the party’s weekly newspaper, "A1".

Moxy (band): Moxy is a Canadian hard rock and heavy metal band, formed in Toronto, Ontario, in 1974, from previous members of the rock group Leigh Ashford – which included singer Douglas "Buzz" Shearman (former teen singer of Sherman & Peabody), alongside Greg Godovitz of Fludd & Goddo, and Gil Moore (later of Triumph), Earl Johnson (former member of King Biscuit Boy), Bill Wade (former member of Outlaw Music and Brutus under the alias Hally Hunter that also included Gino Scarpelli of Goddo) and Terry Juric, (former member of Outlaw Music) as Leigh Ashford.  The group changed its name to Moxy in late 1974.  This name change was accompanied by a change in the group's sound.  Buddy Caine, a former bandmate of Earl Johnson, was added to the group in 1975.

Pantera: Pantera was an American heavy metal band from Arlington, Texas.  The group was formed in 1981 by the Abbott brothers – drummer Vinnie Paul and guitarist Dimebag Darrell – along with lead vocalist Terry Glaze.  Bassist Rex Brown joined the band the following year, replacing Tommy D. Bradford, who was the unofficial original.  Having started as a glam metal band, Pantera released four albums during the 1980s.  Looking for a new and heavier sound, Pantera replaced Glaze with Phil Anselmo in late 1986 and released "Power Metal" in 1988.  With its fifth album, 1990's "Cowboys from Hell", Pantera introduced a groove metal sound.  Pantera's sixth album, 1992's "Vulgar Display of Power", exhibited an even heavier sound. " Far Beyond Driven" (1994) debuted at number one on the "Billboard" 200.

Supporting paragraphs: Rex Brown Pantera
Answer: a glam metal band