Is “Wack Rap,” which featured otherwise unknown MCs Solid C., Bobby D., and Kool Drop rhyming over a funky riddim laid down by Wackies Disco Band, essential? Perhaps not. Notable? Most definitely. With its studio and record store on White Plains Road in the Bronx, Wackies had a front-row seat to the earliest rumblings of hip-hop, a culture created and mapped out by Caribbean people living in the Bronx. So it’s not entirely surprising that, as the recorded hip-hop era kicked off following “Rappers Delight” in 1979, Wackies would enter the fray with one of the earliest releases to ride the wave. —Jesse Serwer