etherbored,
I have the original LP release of "Soul Groove" on Atlantic. The original year of release is 1964. Johnny Griffin is featured primarily, I believe Matthew Gee received equal billing because of his contributions as a composer (5 of the 8 tracks are his compositions). The liner notes include a lengthy discussion about Griffin, Gee is barely mentioned.
The base group is Griffin, Gee, Hank Jones on piano or organ, Aaron Bell on bass or tuba, Carlos "Patato" Valdes on bongos or congas, Art Taylor on drums.
On three of the Gee compositions, Hank Jones is replaced by John Patton on organ.
These are the stronger cuts on the LP IMO, due to the groove layed down by Patton.
All in all, fairly standard 60's soul jazz.
regards,
Booker