A concurrent model of the Basilar Membrane (BM) using the Occam programming language is presented. The model is a modification of the 1-D transmission line model developed by Schroeder (ref 2). The BM is represented as a basic electrical transmission line consisting of 128 elemental sections connected in cascade, with filter centre frequencies spaced on a modified logarithmic scale, and incorporating the physiological properties of cochlear mechanics. The structure of the concurrent model is largely derived from the electrical model, indicating potential design benefits for more complex models. Using the model it is possible to simulate at each point along the membrane the waveform of the sound pressure in the cochlear fluid, as well as the deflection of the membrane itself.