As a professional musician Malcolm Kirby Jr. has performed and recorded with many great musicians such as Fred Wesley, Lenny Castro, Kenny Wolleson, Tommy Campbell, Marcus Printup, Shelly Berg, Steve Gadd, John Medeski, Sam Newsome, The Campbell Brothers, Terrence Howard, Ben Monder, Bernard Purdie, Will Bernard, Satoshi Takeishi, Eric Kalb, Josh Roseman, Meg Okura’s PACJE, Tony Mason, Clay Jenkins, Toshi Nagai, Derek Trucks, Sonny Landreth, The Respect Sextet, and many others.