we study tensor powers of rank 1 drinfeld a-modules, where a is the affine coordinate ring of an elliptic curve. using the theory of a-motives, we find explicit formulas for the a-action of these modules. then, by developing the theory of vector valued anderson generating functions, we give formulas for the coefficients of the logarithm and exponential functions associated to these a-modules, as well as formulas for the fundamental period. this allows us to relate function field zeta values to evaluations of the logarithm function and prove transcendence facts about these zeta values.