Hilton Ruiz is the piano player and Herbie Lewis is the bassist in the Quartet. i remember seeing this group many times and even sitting in with them. The tune is "Inga" written by the great Billy Higgins. It was recorded previously by Clifford Jordan w. Cedar Walton, Sam Jones and Higgins on Firm Roots album (Steeplechase). Very worthwhile version (and album) to listen to if you can find it.
THE great George Coleman no less. One of the most underrated tenor sax players on the planet. I love this guy's playing; inventive, advanced harmonically, circular breathing, the whole thing. A wonderful upload-thank you!