Formed in March 1999, Dysrhythmia represent the vision of guitarist Kevin Hufnagel and bassist Clayton Ingerson, a former music major at the University of the Arts in Philadelphia. Friends since high school, they worked together in the mid-'90s as members of Grey Division Blue. Although they separated for a couple of years, Hufnagel and Ingerson reunited in 1999 to work on an all-instrumental project that was "heavier, more progressive and diverse" than their previous efforts. With the recruitment of drummer Jeff Eber six months later, Dysrhythmia's lineup was solidified.

Released in 2000, Dysrhythmia's debut album, Contradiction, was recorded in four days in a friend's basement studio. In addition to releasing their second album, No Interference, in 2001, they split a 10" single, "Annihilation," with free jazz/metal band Xthoughtstreamsx. Their third album, Pretest, followed in May 2003. Ingerson left the following year and was replaced by Hufnagel's partner in Byla, Colin Marston (Behold... The Arctopus, Gorguts, Encenathrakh, Krallice). Their first release with the new bassist was Barriers and Passages in May 2006, followed by intensive touring through the rest of the year and into 2007. Near the year's end, they issued a split with Rothko entitled Fractures on Acerbic Noise Development. Marston spent most of 2008 recording and touring with Behold... The Arctopus and others; Hufnagel released his debut solo album, Songs for the Disappeared. The pair also joined Canadian tech-death band Gorguts.

Dysrhythmia re-emerged late the following year with the full-length Psychic Maps, produced and engineered by Marston. In the new year, a U.S. tour was followed by their first European dates. While Marston and Hufnagel remained busy with other projects, Dysrhythmia signed to Profound Lore, and in the spring of 2012 began recording Test of Submission with Luc Lemay; it was released in August followed by intensive touring on both sides of the Atlantic. Hufnagel's and Marston's other activities resulted in recordings and tours with other bands for the next three years. When Dysrhythmia finally did record again, they brought Lemay back for their Profound Lore follow-up. Cut in the early spring of 2016, The Veil of Control was issued in September. ~ Craig Harris