MARL has multiple faculty focusing on modeling the complex mental processes involved in the perception and production of music. Our approach integrates multiple perspectives, including theoretical modeling, experimental psychology, cognitive neuroscience, and computation. Current topics being explored range from the cognition of basic musical structures, such as harmony and rhythm, to higher-level phenomena like expectation, tension, and expression and reward or memory. An important research goal of the group is to understand and utilize the implications of cognition for analysis and modeling in the domains of performance, composition, and improvisation.