Maceo Parker, leader of this troup, started out playing with James Brown in 1964. In 1970, Maceo and a bunch of his Brown bandmates took off for two years when they got tired of JB's shenanigans, and this was their first album project. During their time together the group produced two albums and toured extensively. In 1974, Maceo returned to working with Brown, and also spent time in the late 70's working with Parliament and Bootsy Collins. "Doing Their Own Thing" is a funk bomb, as is "Funky Music Machine," the group's 2nd album of 1972.
Track info. from Discogs, as usual:
Album available on Amazon:
(amazon.com) Doing Their Own Thing
(amazon.ca) Doing Their Own Thing