Formed in 1999 in Tokyo, Japan, the four-piece sgt. utilizes a broad range of genres to create their distinctive sound, including that of post-rock, jazz, ambient and improvisation. Using a guitar, violin, drums and bass guitar, the band creates uplifting instrumental compositions comparable to such acts as toe or Anoice. sgt. released their debut mini album Perception of Causality in November 2005, followed by a split recording with good music! the following year.