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GMS (duo)

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Adapted from the English Wikipedia article GMS (duo), available under CC BY-SA 4.0Updated 30 November 2025
GMS (Growling Mad Scientists)
Company typeMusic duo
IndustryMusic, Entertainment
Founded1990s in Amsterdam, Netherlands
FounderShajahan Matkin (Riktam), Joseph Quinteros (Bansi)
Headquarters
Amsterdam
,
Netherlands
Area served
Worldwide
ProductsPsychedelic trance music
Websitewww.gms-music.com

GMS (Growling Mad Scientists) is a psychedelic trance duo from the Netherlands, established in the early 1990s by Shajahan Matkin (known as Riktam) and Joseph Quinteros (Bansi) in Amsterdam. They garnered a significant global fanbase and initiated Spun Records in 1999, marking the first psychedelic trance label in both the United States and Ibiza. In 2008, the pair exited Spun Records to concentrate on their individual pursuits, subsequently founding Starbox Music in 2009 to distribute their own works.

With over 350,000 copies sold internationally, their music has been featured in films directed by Tony Scott, including Man on Fire (2004), Domino (2005), and Unstoppable (2010). GMS received the Psy-Trance award twice at Ibiza’s DJ Awards, winning in 2001 and again in 2009.

Riktam

Shajahan Matkin (born 1976 in Amsterdam) encountered Bansi when they were both 14 years old. After visiting Goa to immerse himself in trance events, he returned in 1995 to co-create GMS with Bansi. Currently residing in Ibiza, he performs as a DJ and live producer worldwide.

Bansi

Joseph Quinteros (born 1976 in Barcelona) was a versatile instrumentalist shaped by his musically inclined father. He met Riktam at age 14, and together they formed GMS following their trip to Goa. Based out of Ibiza, he traveled extensively until his passing from blood cancer on 19 June 2018 at the age of 42.

Albums

Studio albums
Remix albums
  • Top of The TIPs 94-98 (TIP Records, 1998)
  • The Remixes (Spun, 2003)
  • The Remixes Vol2 (Starbox, 2009)
  • Tampered Diversity (Future Music Records, 2018)
Compilation albums
  • Genetic Process (Spun, 2002)
  • Genetic Process "Part Dose" (Spun, 2002)
  • Spunout (Spun, 2003)
  • Pressure (Spun, 2003)
  • Zero-1 (Spun, 2003)
  • Hypernova (Spun, 2004)
  • XXL (Spun, 2004)
  • Remote Viewing (Spun, 2005)
  • Zero Gravity (Spun, 2005)
  • The Outer Limits (Spun, 2005)
  • Spunout in Ibiza (Spun, 2007)
Remixes
  • Major7 & Vini Vici - "Back Underground" (GMS Remix)

Awards

Ibiza DJ Awards
  • Best International DJ Psychedelic Trance – 2001
  • Best International DJ Psychedelic Trance – 2009

External links