▁four ▁of ▁their ▁first ▁eight ▁record ings . ▁The ▁du o ▁then ▁moved ▁to ▁relative ▁new com er ▁writers ▁and ▁produ cers ▁Isaac ▁Hay es ▁and ▁David ▁Por ter . ▁Hay es ▁and ▁Por ter ▁wrote ▁and ▁produced ▁the ▁du o ' s ▁biggest ▁hits ▁( although ▁they ▁did ▁not ▁receive ▁production ▁cred its ▁until ▁the ▁Soul ▁Men ▁LP ▁and ▁singles ). ▁According ▁to ▁Moore ▁and ▁Pr ater , ▁they ▁also ▁greatly ▁influenced ▁the ▁du o ' s ▁singing ▁style , ▁and ▁shift ed ▁their ▁recording ▁style ▁from ▁the ▁style ▁of ▁their ▁Rou lette ▁records ▁to ▁a ▁more ▁live , ▁more ▁ener get ic ▁g ospel , ▁call - and - response ▁feel ▁and ▁beat ▁driven ▁soul ▁style ▁the ▁group ▁is ▁known ▁for ▁today . ▁ ▁Sam ▁& ▁Dave ' s ▁St ax ▁records ▁also ▁benef ited ▁from ▁the ▁mus icians ▁and ▁engineering ▁at ▁St ax . ▁The ▁St ax ▁house ▁band , ▁Book er ▁T . ▁& ▁the ▁M . G .' s , ▁and ▁the ▁St ax ▁horn ▁section , ▁the ▁Mar - Keys , ▁were ▁world - class ▁mus icians ▁who ▁co - w rote ▁( o ften ▁without ▁credit ) ▁and ▁contributed ▁to ▁record ings — the ▁same ▁mus icians ▁who ▁recorded ▁with ▁Ot is ▁Red ding , ▁Wilson ▁Pick ett , ▁Car la ▁Thomas ▁and ▁other ▁soul ▁artists . ▁Sam ▁& ▁Dave ' s ▁St ax ▁record ings ▁through ▁ 1 9 6 7 ▁were ▁engine ered ▁by ▁St ax ▁founder ▁Jim ▁Stewart , ▁who ▁created ▁the ▁M