Question: Who is the only permanent member of an electronic music group that Andy Hughes is most known for being a part of?

Context articles: Andy Hughes
Orblivion
The Orb
Meat Beat Manifesto
Panda (musician)
The Future Sound of London
Metronomy
Earthstar (band)
AeTopus
Hwyl Nofio

Andy Hughes (11 November 1965 – 12 June 2009) was an English electronic music producer.
 He is most known for his work with The Orb, where he helped mix and produce "Orbus Terrarum", "Orblivion", and "Cydonia", as well as The Orb's singles from this period.
 Hughes left The Orb during the production of "Cydonia", which was reworked after his departure.
 In 2009, he mastered The Orb's "Baghdad Batteries (Orbsessions Volume III)" for release.
 He also did additional original production work and performed remixes for The Cranberries and Tangerine Dream.
Orblivion is the fourth studio album by English electronic music group The Orb, released on 24 February 1997 by Island Records.
 With the album, The Orb, reunited with Andy Hughes and Steve Hillage, returned to their spacy sounds typical of "U.F.Orb".
The Orb are an English electronic music group known for being the pioneers of ambient house.
 Founded in 1988 by Alex Paterson and The KLF member Jimmy Cauty, the Orb began as ambient and dub DJs in London.
 Their early performances were inspired by ambient and electronic artists of the 1970s and 1980s, most notably Brian Eno and Kraftwerk.
 Because of their trippy sound, the Orb developed a cult following among clubbers "coming down" from drug-induced highs.
 The Orb has maintained their drug-related and science fiction themes despite personnel changes, including the departure of Cauty and other Orb members Kris Weston, Andy Falconer, Simon Phillips, Nick Burton and Andy Hughes.
 Paterson has been the only permanent member, continuing to work as the Orb with the Swiss-German producer Thomas Fehlmann and, later, with Martin "Youth" Glover, bass player with Killing Joke.
Meat Beat Manifesto, often shortened as Meat Beat, Manifesto or MBM, is an electronic music group originally consisting of Jack Dangers and Jonny Stephens, and formed in 1987 in Swindon, United Kingdom.
 The band, fronted by Dangers (the only permanent member), has proven versatile over the years, experimenting with techno, dubstep, drum and bass, IDM, industrial, dub and jazz fusion while touring the world and influencing major acts such as Nine Inch Nails, The Chemical Brothers and The Prodigy.
 Some of the band's earlier work has been credited with influencing the rise of the trip hop, big beat, and drum and bass genres.
Pieter Hooghoudt (born April 14, 1986), known by his stage name Panda, a Dutch electronic music artist living in Amsterdam, specializing in Drum and Bass.
 He gained an interest in electronic music in his teenage years.
 He was inspired to write electronic music after seeing a live performance by an electronic music act in his birthplace Nijmegen.
 Panda’s tracks have been aired on all premier drum & bass radio stations including BBC Radio 1 and many major drum and bass performers have played Panda’s music in clubs.
The Future Sound of London (often abbreviated to FSOL) is a British electronic music group composed of Garry Cobain (sometimes stylised as "Gaz" Cobain) and Brian Dougans.
 The duo are often credited with pushing the boundaries of electronic music experimentation and of pioneering a new era of dance music.
 Although often associated with ambient music, Cobain and Dougans usually resist being typecast into any one particular genre.
 Their work covers many areas of electronic music, such as ambient techno, house music, trip hop, ambient dub, acid techno.
 In addition to music composition, their interests have covered a number of areas including film and video, 2D and 3D computer graphics, animation in making almost all their own videos for their singles, radio broadcasting and creating their own electronic devices for sound making.
 They have released works under numerous aliases.
Metronomy are an electronic music group formed in 1999.
 The current band consists of Joseph Mount (vocals, keyboards and guitar), Oscar Cash (saxophone, backing vocals, guitars and keyboards), Anna Prior (drums and vocals) and Gbenga Adelekan (bass guitar and vocals).
 Their music consists of instrumental electronic music and more recently, with the release of "Nights Out", vocal electronic pop music.
 Mount also releases remixes under the name Metronomy, and has remixed many artists including Gorillaz, Sebastien Tellier, Roots Manuva, Franz Ferdinand, Klaxons, Goldfrapp, Young Knives, Zero 7, Ladytron, Kate Nash, Lady Gaga and Lykke Li.
Earthstar was an electronic music group originally from Utica, New York, in the United States.
 Earthstar was encouraged by Krautrock/Kosmische Musik/electronic music artist, composer, and producer Klaus Schulze to relocate to Germany where they were signed by Sky Records.
 Schulze produced their second and most successful album, "French Skyline".
 Earthstar is notable as the only American band who participated in Germany's Kosmische Musik/electronic music scene while still at its height.
AeTopus is a progressive Electronic music project performed and produced by composer Bryan Tewell Hughes.
 The music has received critical acclaim within the new-age and electronic music genres, and the album "Between Empires" won the award of Best Electronic album in the 2012 Zone Music Reporter Awards.
 The album "Tempula" was nominated in the Best Electronic category in the 2006 NAR Lifestyle Music Awards.
Hwyl Nofio (from Welsh meaning ‘emotional swimmers’) is an experimental music group whose only permanent member is Steve Parry.
 Steve Parry was born 4 September 1958 in Pontypool, South Wales Valleys, UK