"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."