On Grover Washington Jr's CD Grover Live, there is a picture of Grover & his band from 1979. The bassist is holding a Series Bass.
On the documentary Jazz Giants of the 20th Century shown on the Aspire netork, Grover performs 'A Secret Place' with said bassist on said Series bass in 1979.
Might be a major musician since Grover hired cats such a Will Lee, Tyrone Brown, Marcus Miller, Anthony Jackson, etc ...
Any club members have any idea?