Among groups led by other people, he is a member of the Vandermark 5, the Joe McPhee Trio, the Peter Brötzmann Chicago Tentet, Keefe Jackson’s Fast Citizens, and Ken Vandermark’s Territory Band.
The Manfred Schulze Wind Quintet, Doppelmoppel (with Conny Bauer, Uwe Kropinski, Helmut "Joe" Sachse), Slawterhaus (with Jon Rose, Peter Hollinger and Dietmar Diesner, Futch (with Thomas Lehn and Jon Rose), Ken Vandermark Territory Band and the Peter Brötzmann Tentet.
Jazz musicians with whom McPhee has recorded or performed include Ken Vandermark, Peter Brötzmann, Evan Parker, Mats Gustafsson, Jeb Bishop, The Thing, Clifton Hyde, Jérôme Bourdellon, Raymond Boni, and Joe Giardullo.
Last year's Umbrella Music festival was called Chicago's second-most "impressive and adventurous jazz festival of the year" and featured European musicians together with Chicagoans such as John Herndon and Ken Vandermark.
Ken Livingstone | Ken Burns | Ken Loach | Ken Russell | Ken Kesey | Ken Dodd | Ken Salazar | Ken Sugimori | Ken Saro-Wiwa | Ken Vandermark | Ken Dryden | Ken | Ken Rosewall | Ken Mandelbaum | Ken Dorsey | Ken Wilber | Ken Venturi | Ken Follett | Ken Berry | Ken Stringfellow | Ken Jennings | Ken Howard | Ken Campbell | Ken Arthurson | Ken Schaffer | Ken Patera | Ken Nordine | Ken Hirai | Ken Hendricks | Ken Farrington |
Since his first recording in 2000 he continuously (with his Twin brother Bartlomiej Brat Oles) he has cooperated and performed with musicians such as Theo Jörgensmann, David Murray, William Parker, Herb Robertson, Ken Vandermark, Hamid Drake, Chris Speed, Erik Friedlander a.o.
He has collaborated with numerous musical artists, including Califone, Dirty Three, Gastr del Sol, Fred Lonberg-Holm, Will Oldham, Scott Tuma and Ken Vandermark.