Tsuyoshi Sekito (関戸 剛 , Sekito Tsuyoshi , born April 3, 1963) is a Japanese video game composer, arranger, and musician who has been employed at Square Enix since 1995.
 As a composer, he is best known for scoring "Brave Fencer Musashi" (1998), "" (2005) and "The Last Remnant" (2008).
 He also plays the guitar in the rock bands The Black Mages and The Star Onions; both groups arrange and perform compositions from the "Final Fantasy" series.
Nobuo Uematsu (植松 伸夫 , Uematsu Nobuo , born March 21, 1959) is a Japanese video game composer, best known for scoring most of the titles in the "Final Fantasy" series by Square Enix.
 He is considered to be one of the most well known composers in the video game industry.
 Sometimes referred to as the "Beethoven of video games music", he appeared five times in the top 20 of the annual Classic FM Hall of Fame.
Symphonic Shades: Hülsbeck in Concert was a symphonic tribute concert held twice in Cologne, Germany on 23 August 2008 featuring video game music.
 The concert was held in honor of the German born video game composer Chris Hülsbeck, and featured orchestral arrangements exclusively based on Hülsbeck's works throughout his 22-year-long career.
 The concert was produced and directed by Thomas Böcker, with the majority of arrangements provided by Finnish composer and musician Jonne Valtonen, and with contributions by Japanese video game composers Yuzo Koshiro, Takenobu Mitsuyoshi and additional assistance from Adam Klemens.
Yoshitaka Hirota (弘田佳孝 , Hirota Yoshitaka , born September 1, 1971) is a Japanese video game composer and bass guitarist.
 His most notable works include the soundtracks to the "Shadow Hearts" series.
 Hirota was previously a sound effects programmer having worked on various Square titles.
 His first work as a video game composer was for the 1999 Nintendo 64 game "".
The Earthbound Papas are a Japanese progressive rock/metal band performing songs and interpretations of music from video games, mainly the "Final Fantasy" series.
 Nobuo Uematsu, the acclaimed composer of music in the "Final Fantasy" series, formed the band after his previous band, The Black Mages, disbanded in 2010.
Nobuyoshi Sano (佐野 信義 , Sano Nobuyoshi , born January 19, 1969) , better known as sanodg, is a Japanese video game composer, musician and record producer most famous for scoring some songs for the "Ridge Racer" and "Tekken" series, most notably "Tekken 3", where he composed most of the soundtrack.
 He worked for Namco and Cavia.
 He currently works for the company Detune, where he designed and produced the music software KORG DS-10 for Nintendo DS.
 The band Trio the DS-10 was formed consisting of himself, Yasunori Mitsuda and Michio Okamiya for the promotion of the video game.
 He also composed the theme of "Tokyo Café" for the French TV channel Nolife.
 He cited Underworld and Yellow Magic Orchestra as his favorite musical bands.
Masaharu Iwata (岩田 匡治 , Iwata Masaharu , born October 26, 1966) is a Japanese video game composer.
 After graduating from high school, where his musical projects included composing on a synthesizer and playing in a cover band, he joined Bothtec as a composer.
 He composed the soundtrack to several games there, beginning with 1987's "Bakusou Buggy Ippatsu Yarou", and after the company was merged into Quest, he left to become a freelance composer.
 His most well-known projects include "", "Tactics Ogre", "Final Fantasy Tactics", and "Final Fantasy XII", though throughout his career he has composed music for over 65 games.
 He is one of the founding members of Basiscape, headed by fellow composer Hitoshi Sakimoto and currently one of the largest independent Japanese video game music production companies.
 His compositions for strategy role-playing games such as the "Ogre Battle" and "Final Fantasy Tactics" series have been described as "among the most well-recognized in the genre".
The Black Mages were a Japanese instrumental rock band formed in 2002 by Nobuo Uematsu, Kenichiro Fukui and Tsuyoshi Sekito, who were three video game composers for Square Enix.
 The band arranged Uematsu's "Final Fantasy" video game series-based compositions in a hard rock style often similar to progressive metal, achieved with the additional use of synthesizers.
 Since its inception, the band had expanded to six members with the addition of Keiji Kawamori, Michio Okamiya and Arata Hanyuda.
 In August 2010, Uematsu announced the band had been disbanded, but he would continue to perform rock arrangements of his music as a part of another similar band, known as the Earthbound Papas.
Kenichiro Fukui (福井 健一郎 , Fukui Ken'ichirō ) is a Japanese video game composer and electronic musician.
 Before working at Square Enix, he was employed at Konami.
 He was also an arranger and a keyboardist in the band The Black Mages.
 Additionally, Fukui arranged Angela Aki's "Kiss Me Good-Bye" from "Final Fantasy XII".
 In October 2007, he left Square Enix to become a lecturer, although he continued to work with The Black Mages until the band dissolved in 2010, and continued to do freelance work with video games.
 His Konami Kukeiha Club nickname was "Funiki Fukui".
 He currently lives in Yokohama, Japan.
Kumi Tanioka (谷岡 久美 , Tanioka Kumi , born August 29, 1974) is a Japanese video game music composer and pianist.
 Born in Hiroshima, Japan, she graduated from Kobe University with a degree in musical performance, and began working as a video game composer in 1998.
 She joined video game developer and publisher Square that same year, and worked on over 15 games for them before leaving to work as an independent composer in 2010.
 She is most known for composing for the "Final Fantasy Crystal Chronicles" series, which she composed for Square Enix.
 Tanioka has a style of "world music", whereby she combines instruments from different parts of the world into one cohesive sound.
 She also likes to incorporate piano music into her soundtracks, which she typically performs herself, as she has done as a part of The Star Onions, a musical group focusing on arrangements of "Final Fantasy XI" music made up of Square Enix composers, as well as on her own at various concerts, such as 2011's "Final Fantasy XI"-themed VanaCon.

Question: When was the Japanese video game composer who formed The Black Mages born 
Answer: March 21, 1959