Solar Plex was an unknown soul/funk group. The members of the group were probably Bill Williams, Vance Roque and bassist Victor Purvis. All these guys were previous members of the funk group Full Force. They released a single entitled "Why did you walk away / Party hearty" on White Brothers Records in 1981. Robert and Alphonso White were the owners.
Both of these songs were written probably in 1979. Lyrics of "Why did you walk away" were written by Bill Williams and the music was written by Vance Roque. Produced by Robert & Alphonso White. Arranged by Victor Purvis.
Note: The above posted single is not played in full