Question: Where was the keyboard that Brian Jones plays in the song "2000 Light Years from Home" originally developed?

Context articles: Aquarius Stream
Light Years (Pearl Jam song)
Fomalhaut C
HD 197036
Four Light Years
2000 Light Years from Home
Spinning Around
Mellotron
Joujouka Black Eyes
Please Stay (Kylie Minogue song)

The Aquarius Stream is a stellar stream located in the Milky Way Galaxy.
 It is so named because most of the stars in the stream lie in the direction of the Aquarius constellation.
 At its nearest point it is about 2000 light years from Earth; At its farthest it is about 30,000 light years away.
 It is the closest stellar stream to Earth yet found, and the youngest having formed about 700 million years ago.
 The stream was discovered in late 2010 by a team of astronomers involved in the RAdial Velocity Experiment (RAVE) survey led by New Zealander Mary Williams.
"Light Years" is a song by the American rock band Pearl Jam.
 Featuring lyrics written by vocalist Eddie Vedder and music co-written by Vedder and guitarists Mike McCready and Stone Gossard, "Light Years" was released on July 18, 2000 as the second and final single from the band's sixth studio album, "Binaural" (2000).
 The song peaked at number 17 on the "Billboard" Mainstream Rock Tracks chart.
 The song was included on Pearl Jam's 2004 greatest hits album, "rearviewmirror (Greatest Hits 1991–2003)".
Fomalhaut C or its original name, LP 876-10 is the distant third star of the Fomalhaut system.
 It is about five degrees from Fomalhaut, roughly halfway between it and the Helix Nebula.
 It is currently 2.5 light years (0.77 pc) from Fomalhaut A, and 3.2 light years away from Fomalhaut B (0.987 pc).
 The entire system is only around 25 light years (7.7 parsecs) from our Solar System.
 It was originally catalogued as a lone red dwarf, until October 2013, when Eric Mamajek announced that the star had a distance, velocity and color-magnitude position consistent with it being part of the Fomalhaut system.
 It was most likely catalogued with no relation to Fomalhaut due to the fact that it is in the Aquarius constellation, while the rest of the system are in the Piscis Austrinus constellation.
HD 197036 is a 7th magnitude star in the constellation Cygnus, approximately 2000 light years away from Earth.
 It is a bluish white subgiant star of the spectral type B5IV, meaning it possesses a surface temperature of 11,000 to 25,000 kelvins.
 It is therefore hotter, larger, and brighter than our Sun.
 It can be found within one degree of the star Deneb.
Four Light Years is a box set of three studio albums by Electric Light Orchestra (ELO).
 It was released in 1980 by Jet Records.
vThe box contained three albums: "A New World Record" (1976), the double album "Out of the Blue" (1977), and "Discovery" (1979).
 Each album was a large commercial success in its own right, but unlike "Three Light Years" it did not chart as a combined collection on the UK Albums Chart.
 The set was so-titled because it covered four years, contained four vinyl records, and was a sequel to "Three Light Years" (1978).
 A proposed "Across the Border" EP was meant to promote the box set but was withdrawn.
 The EP version of the song would later turn up on the 1997 singles compilation "Light Years".
"2000 Light Years from Home" is a song from The Rolling Stones' 1967 psychedelic rock album "Their Satanic Majesties Request".
 Written by Mick Jagger and Keith Richards, it also appeared as the B-side to the American single "She's a Rainbow", and charted as a single in Germany.
 Jagger reportedly wrote the lyrics in Brixton prison following his conviction on drug charges in June 1967.
 The song was recorded by the band inside Olympic Studios during July 1967.
 The working title of the instrumental backing was "Toffee Apple".
 The prominent string part is played by Brian Jones on Mellotron.
"Spinning Around" is a song recorded by Australian singer Kylie Minogue for her seventh studio album, "Light Years" (2000).
 It won the 2000 ARIA Music Award for Best Pop Release.
 Written by Ira Shickman, Osborne Bingham, Kara DioGuardi, and Paula Abdul, "Spinning Around" was initially meant to be recorded by Abdul for her own album, but was given to Minogue after the plan never came to fruition.
 Produced by Mike Spencer, the disco-influenced dance-pop song was then released as the lead single from "Light Years" on 19 June 2000.
 Lyrically, the song addresses the theme of reinvention, with Minogue claiming that she has changed as a person and learned from the past.
The Mellotron is an electro-mechanical, polyphonic tape replay keyboard originally developed and built in Birmingham, England, in 1963.
 It evolved from a similar instrument, the Chamberlin, but could be mass-produced more effectively.
 The instrument works by pulling a section of magnetic tape across a head.
 Different portions of the tape can be played to access different sounds.
Joujouka Black Eyes is a CD by Moroccan Sufi trance musicians Master Musicians of Joujouka.
 It was released in May 1995 on Sub Rosa Records.
 It was produced by Frank Rynne and includes the song "Brian Jones Joujouka very Stoned" written by Joujouka born painter Mohamed Hamri.
 This song commemorates the third visit of Rolling Stones founder Brian Jones to Jajouka.
 On this visit Jones recorded "Brian Jones Presents the Pipes of Pan at Joujouka".
 The group on this CD includes veteran Joujouka musician Mujehid Mujdoubi (1893-1997).
"Please Stay" is a song by Australian singer and songwriter Kylie Minogue, for her seventh studio album "Light Years" (2000).
 The song was written by Minogue, Richard Stannard, Julian Gallagher, and John Themis, and was produced by Stannard and Gallagher.
 The song was chosen as the fourth single from her studio album "Light Years."
 "Please Stay" is a midtempo dance-pop song, and differs from the majority of its parent album's light, disco-inspired songs by adopting a more mature Latin pop style.
 It is one of the few songs recorded by Minogue to be Latin pop-based.
 The song received generally positive reviews from music critics.