For over 25 years Kirk has worked and recorded with many leading jazz musicians including Claude Ranger, Dave Young, Sam Noto, Sonny Greenwich, Kenny Wheeler, Eddie Henderson, Harold Mabern, Walter Bishop Jr., Lorne Lofsky, Bob Mover, Pat LaBarbera, John Taylor, Bob Mintzer, Vince Mendoza, John Clayton, Chris Potter, Dennis Mackrel, Phil Nimmons, James Moody, Rosemary Clooney, Humber College Faculty Ensemble. Over 90 performances of his compositions appear on 22 CDs, both as leader on his own recordings as well as on recordings by other artists. Kirk’s most recent activities include the release of Family Suite (2008), an 11 part suite for jazz quartet on Romhog Records, and Songbook Vol. I (2009) – a collection of his compositions for jazz quartet, on ADDO Jazz Records followed by Songbook Vol. II (2010). Kirk also leads the Kirk MacDonald Jazz Orchestra (KMJO), a 19-piece all-star ensemble dedicated to performing his original compositions and featuring arrangements by leading Canadian and U.S. writers. The KMJO released its debut recording Deep Shadows in March 2011. Kirk has recently finished his tenth recording as leader with the KMJO – a re-working of Family Suite for jazz orchestra, and his eleventh, Symmetry.