Catalyst was a funk/jazz quartet from Philadelphia, Pennsylvania, whose material presaged the work of later jazz fusion artists. The group encountered regional success in the 1970s and have become more widely known since the re-release of their material on CD. Following their time with Catalyst, Green played with Pat Martino and MFSB, and both Pope and Brown began playing gigs with Max Roach; Pope also played with the Saxophone Choir. Ferguson later played with Pharaoh Sanders, Bud Shank, and Kenny Burrell.