"Acoustic bassist Jason Ajemian is one of the members of the underground music scene in Chicago, playing a variety of creative improvised, noise, and experimental musics based in rock and jazz. He is a graduate of the William Patterson College in New Jersey, where he studied with bassist Rufus Reid and percussionist Kevin Norton. Arriving in Chicago in the fall of 2000, Ajemian embraced the then burgeoning progressive music community. Ajemian also vocalizes and utilizes electronics. His dizzying number of credits include work with Rob Mazurek, the Exploding Star Orchestra, Dragons 1976, Lay All Over It, Born Heller, Matt Bauder, Ken Vandermark's Crisis Ensemble, Who Cares How Long You Sink, Triage, Mandarin Movie, the Chicago Underground Trio, and countless others."

"Tony Malaby (born January 12, 1964 in Tucson, Arizona) is a jazz tenor saxophonist. Malaby moved to New York City in 1995 and has played with several notable jazz groups, including Charlie Haden's Liberation Music Orchestra, Paul Motian's Electric Bebop Band, Mark Helias's Open Loose, Fred Hersch's Trio + 2 and Walt Whitman project, and bands led by Mario Pavone, Chris Lightcap, Bobby Previte, Tom Varner, Marty Ehrlich, Angelica Sanchez, Mark Dresser, and Kenny Wheeler. Other collaborators have included Tom Rainey, Christian Lillinger, Ben Monder, Eivind Opsvik, Nasheet Waits, and Michael Formanek. His first album as a co-leader was Cosas with Joey Sellers."

"Rob Mazurek is an American electro-acoustic composer, cornetist, improviser and visual artist living in Chicago, Illinois. As a composer, Rob Mazurek has written over 300 original compositions over the past 30 years, and has released 55 recordings on various labels. He currently leads a number of ensembles, including Exploding Star Orchestra, Pharoah and the Underground (featuring Pharoah Sanders), Chicago Underground, Pulsar Quartet, São Paulo Underground, Skull Sessions, Sound Is Quintet, Starlicker, Mandarin Movie and Throne of the House of Good and Evil, each of which possesses its own distinct musical personality.

He has collaborated with a wide variety of artists, such as Bill Dixon, Pharoah Sanders, Mike Ladd, Roscoe Mitchell, Yusef Lateef, Fred Anderson, Naná Vasconcelos, Mamelo Sound System, Kassin and Marcelo Camelo and others. Additionally, Rob Mazurek works as a visual artist (incorporating sound, painting and video) with numerous international performances, exhibitions and artist residencies."

"Chad Taylor (b. 1973) is a composer, educator, percussionist and scholar who is a co-founder of the Chicago Underground ensembles. Originally from Tempe, AZ, Chad grew up in Chicago where he started performing professionally at the age of 16. Chad has performed with Fred Anderson, Derek Bailey, Cooper-Moore, Pharoah Sanders, Marc Ribot, Peter Brotzmann, Malachi Favors and many others. Chad leads his own band Circle down which debut recording was given a 5 star review by All music:

"What is remarkable is that there is no wasted motion, no histrionics or grandstanding, as pure emotion is translated to superlative music making on this most highly recommended recording, one for the ages." Allmusic.com

Chad has a BFA from the New School in Jazz Performance and a MFA in Jazz Research and History from Rutgers University."