Graduate Prerequisites: GRS LX 601 (formerly CAS LX 510), or consent of instructor. - Survey of phonological theory and analysis, with focus on cross-linguistic typology of phonological systems. Phonological reasoning and argumentation skills are developed. Empirical coverage includes contrast, distinctive features, rules and constraints, opacity, tone, syllabification, stress, and interactions with morphology and syntax. This course cannot be taken for credit in addition to the course entitled "Introduction to Phonology" that was previously numbered CAS LX 513.