toot your own horn...
...because that's what you'll have to do to make this a quartet recording. This is actually the 1986 album "Double Trios." Tracks 1-4 feature Avery Sharpe on bass and Louis Hayes on drums; tracks 5-8 are Marcus Miller on electric (yes, electric) bass and Jeff "Tain" Watts on drums. "Sudan" represents an extremely rare instance of Tyner dabbling on an electric keyboard!